GameChanger Academy

1. Why does the web of a spider shine?

[CEE 2023]

Diffraction
Refraction
Reflection
Interference

2. Find the equivalent resistance when each resistor (R) is 1 Ω. Calculate the values of resistance A and B.

[CEE 2023]

1 Ω
5 3 Ω
3 4 Ω
7 6 Ω

3. The external and internal diameter of a hollow cylinder are measured to be (4.23 ± 0.01) cm and (3.89 ± 0.01) cm, respectively. The thickness of the cylinder is:

[CEE 2023]

(0.34 ± 0.02) cm
(0.34 ± 0.01) cm
(10.17±0.01) cm
(0.17 ± 0.02) cm

4. Dimension of angular momentum is:

[CEE 2023]

ML²T²
ML²T^-1
MLT^-1
MLT

5. The escape velocity on Earth for a satellite launched vertically is 11 km/s. If the satellite is launched at 45°, the escape velocity will be:

[CEE 2023]

11 km/s
22 km/s
33 km/s
44 km/s

6. The magnetic field at the center is:

[CEE 2023]

μ₀I 4r
2μ₀I 3r
3μ₀I 4r
3μ₀I 8r

7. f=50Hz, E₀=200V. In an LCR circuit, the value of E₀ is more than 220 at:

[CEE 2023]

Resistance
Inductor
Capacitance
Inductor of capacitance according to the value of C or L

8. Characteristics of Hard X-ray is:

[CEE 2023]

low wavelength
low energy
low frequency
long wavelength

9. Which of the following factors favors the existence of a substance in the solid state?

[CEE 2023]

High thermal energy
Low temperature
High pressure
Weak cohesive force

10. Which of the following determines the point of maximum photoelectric current saturation?

[CEE 2023]

Intensity
Stopping potential
Frequency
Wavelength

11. What is the percentage of dark matter in the universe?

[CEE 2023]

85%
25%
15%
30%

12. Quarks for an antineutron?

[CEE 2023]

udd
uud
u̅d̅d̅
u̅u̅d̅

13. A wire 50 cm long with a 1 mm² cross-section carries a current of 4 A. When connected to a 2 V battery, the resistivity of the wire is:

[CEE 2023]

4 x 10^-7 Ωm
2 x 10^-7 Ωm
5 x 10^-7 Ωm
1 x 10^-6 Ωm

14. If E denotes the electric field present between two plates of a capacitor having length d and area A, then the energy stored in the capacitor is:

[CEE 2023]

1 2 ε₀E²
1 2 ε₀E²Ad
1 2 EAd
E²Adε₀

15. The coefficient of viscosity for hot air is:

[CEE 2023]

Greater than the coefficient of viscosity for cold air
Smaller than the coefficient of viscosity for cold air
Same as the coefficient of viscosity of cold air
Increases or decreases depending on the external pressure

16. Two blocks, each of mass M, are resting on a frictionless inclined plane as shown in the figure. Then:

[CEE 2023]

The block A moves down the plane
The block B moves down the plane
Both the blocks remain at rest
Both the blocks move down the plane

17. Red color of the sky during sunrise and sunset is due to:

[CEE 2023]

Dispersion of light
Scattering of light
Refraction
Diffraction

18. At what height from Earth's surface is the acceleration due to gravity (g) reduced by 4 times?

[CEE 2023]

R
R/4
4R
2R

19. What is the cause of the potential barrier in a PN diode?

[CEE 2023]

Diffusion of charge carriers
Drift of electrons
Drift of holes
Forbidden band

20. In a glass containing liquid, where the cohesive force is greater than the adhesive force, what type of meniscus is formed?

[CEE 2023]

Concave
Convex
Plane
Oval

21. Proton is 1836 times heavier than an electron. If a proton is accelerated through 1 V, then its kinetic energy is:

[CEE 2023]

1836 eV
1 eV
1 MeV
1836 MeV

22. A thread subtended between two ends has harmonics in the ratio:

[CEE 2023]

1:2:3
1:3:5
1:1:1
1:2:4

23. If n number of capacitors were connected in series first, then in parallel, the ratio of maximum to minimum capacitance is:

[CEE 2023]

n²
1 n
n
1 n²

24. At 300 K, radiated energy is proportional to:

[CEE 2023]

(300)⁴
(300)²
(300)³
300

25. The intensity level due to waves of the same frequency in a given medium is 1 Bel and 5 Bel; the ratio of their amplitudes is:

[CEE 2023]

1:4
1:2
1:10⁴
1:10²

26. A source is moving towards an observer, and the apparent frequency heard by the observer is half the original frequency. What is the velocity of the source if the velocity of sound is:

[CEE 2023]

v
4v
2v
6v

27. How many transistors are needed for a full-wave rectifier?

[CEE 2023]

2
1
0
3

28. For an equiconvex lens with a power of 4 diopters and refractive index (μ) of 1.5, what is the radius of curvature?

[CEE 2023]

25 cm
100 cm
4 cm
10 cm

29. In the photoelectric effect, what does the slope of the straight line graph between stopping potential and the frequency of incident light represent?

[CEE 2023]

The ratio of Planck's constant to the charge of an electron
Work function
Kinetic energy of electrons
Photoelectric current

30. In the common base mode of a transistor, the collector current is 5.488 mA, and the emitter current is 5.60 mA. The value of the base current amplification factor (β) is:

[CEE 2023]

49
48
50
51

31. Find x and y in the following nuclear reaction:
¹⁴₇N + ¹₀n → ¹⁴₆C + x
¹⁰₅B + ⁴₂He → ¹³₇N + y

[CEE 2023]

¹₁H and ¹₀n
¹₀n and ⁰₁e
⁰_-1e and ¹₁H
¹₀n and ¹₁H

32. Which of the following emissions doesn't change atomic number?

[CEE 2023]

γ emission
β emission
α emission
Electron capture

33. The ratio of masses is given as 1:3. What is the ratio of atomic densities? (This question is incomplete as atomic weights are not provided.)

[CEE 2023]

3√3:1
1:3
3:1
1:1

34. What is the heat required to convert 1 gram of water from 3.5°C to 4.5°C?

[CEE 2023]

1 Joule
1 Calorie
4.2 Calories
42 Calories

35. A cell of EMF 6V has an internal resistance of 0.5 kΩ. Find the voltage of a voltmeter that has a resistance of 2.4 kΩ when connected across the cell.

[CEE 2023]

1V
10V
5V
4.9V

36. The neutral temperature is θ_n °C, the temperature of inversion is θ_i °C, and the temperature of the cold junction is θ₀ °C. What is the relation between θ_i and θ_n?

[CEE 2023]

2θ_n = θ₀ + θ_i
2θ_n = θ₀ - θ_i
θ_n = θ₀ + θ_i
3θ_n = θ₀ + θ_i

37. With a rise in Young's modulus of elasticity, what happens to the elasticity of the material?

[CEE 2023]

Increases
Decreases
Constant
Becomes zero

38. A small spherical ball with density equal to the density of the liquid is immersed in it. What is the drift velocity?

[CEE 2023]

0
Infinity
100
1

39. 6g of oxygen at pressure P and temperature 300 K in a vessel is allowed to diffuse through a small hole, and the final pressure is 2P and temperature 400 K. How much oxygen is leaked out?

[CEE 2023]

2 g
3 g
4 g
5 g

40. When the distance from a light source is doubled, the illuminance is:

[CEE 2023]

Halved
1/4 times
4 times
2 times

41. Two substances have a ratio of mass 3:2 and a ratio of specific heat 1:4. They are equally heated. What is the ratio of their rise in temperature?

[CEE 2023]

8:3
3:8
1:4
4:1

42. The ratio of masses is given as 1:3. What is the ratio of atomic densities? (This question is incomplete as atomic weights are not provided.)

[CEE 2023]

3√3:1
1:3
3:1
1:1

43. What is the heat required to convert 1 gram of water from 3.5°C to 4.5°C?

[CEE 2023]

1 Joule
1 Calorie
4.2 Calories
42 Calories

44. A cell of EMF 6V has an internal resistance of 0.5 kΩ. Find the voltage of a voltmeter that has a resistance of 2.4 kΩ.

[CEE 2023]

1V
10V
5V
4.9V

45. For the same de Broglie wavelength, which particle has the highest kinetic energy?

[CEE 2023]

Electron
Proton
Both
No kinetic energy

46. What is the saturation vapor pressure for water at 10°C?

[CEE 2023]

766 mmHg
716 mmHg
760 mmHg
9.2 mmHg

47. To make a p-type semiconductor, it is doped with:

[CEE 2023]

Trivalent impurities
Pentavalent impurities
Tetravalent impurities
Divalent impurities

48. 1 eV is equal to:

[CEE 2023]

1.6 × 10^-19 J
10 erg
1.1 × 10^-19 J
1.1 × 10^-11 erg

49. A circular loop of wire carrying current is hung freely from a thread. In which direction will it point?

[CEE 2023]

N-S direction
S-N direction
E-W direction
W-E direction

50. In a stretched string, the ratio of consecutive frequencies of the sound produced is:

[CEE 2023]

1:2:3
1:3:5
1:5:7
2:4:8

51. Which of the following is the character for ascaris?

[CEE 2023]

Absence of true coelom & metamerism
Absence of true coelom & presence of metamerism
Presence of true coelom & metamerism
Presence of true coelom & absence of metamerism

52. A zoology researcher was roaming around the seashore when suddenly he found a white stone-like structure that resembled a pearl. He knew that it was from the phylum Mollusca. What is it?

[CEE 2023]

Physalia
Pinctada
Mytilus
Dentalium

53. The terminal duct of septal nephridia in an earthworm opens into:

[CEE 2023]

Intestine
Paired septal excretory canal
Paired supra-intestinal excretory canal
Dorsal vessel

54. Which of the following is digitigrade?

[CEE 2023]

Fossorial
Cursorial
Arboreal
Volant

55. Which element is present in Vit. B1?

[CEE 2023]

Cobalt
Ferrum (Iron)
Magnesium
Calcium

56. The Eustachian tube is found in?

[CEE 2023]

Superior vena cava
Inferior vena cava
Pulmonary vein
Middle ear

57. Which of the following doesn't have a pinna (external ear flap)?

[CEE 2023]

Prosimian
Prototheria
Eutheria
Metatheria

58. High altitude sickness is due to:

[CEE 2023]

Low pressure of oxygen
High concentration of carbon dioxide
Dehydration
Decreased efficiency of hemoglobin

59. What happens when a person lives in a high altitude for some days?

[CEE 2023]

RBC production increases
Hemoglobin production increases
Size of RBC increases
Hemoglobin decreases

60. Which papillae are absent in humans?

[CEE 2023]

Foliate
Circumvallate
Fungiform
Filiform

61. Where is the gall bladder located in a frog?

[CEE 2023]

In between two lobes of the liver and is invisible
Between two small left lobes
Between the right and left lobe
Attached to the ventral surface of the right lobe of the liver

62. Which organ is a storehouse of malarial parasite in the human body?

[CEE 2023]

Liver
Spleen
Jejunum
Kidney

63. Areolar tissue is present between:

[CEE 2023]

Integument and muscle
Bone and fat body
Bone and muscle
Muscle and fat body

64. The heart of a human is myogenic due to:

[CEE 2023]

SA node
AV node
Purkinje fiber
Bundle of His

65. The thermoregulatory center is located in:

[CEE 2023]

Hypothalamus
Diencephalon
Cerebellum
Cerebrum

66. Animals regulate their body temperature by:

[CEE 2023]

Increasing/decreasing body temperature when external temperature increases or decreases, respectively
Maintaining constant internal body temperature
Increasing body temperature
Decreasing body temperature

67. Which of the following is a depressant?

[CEE 2023]

Amphetamine
LSD
Barbiturates
Cocaine

68. Which of the following is a protective tissue?

[CEE 2023]

Epithelial tissue
Connective tissue
Nervous tissue
Muscular tissue

69. What was the first form of life?

[CEE 2023]

Cyanobacteria
Chemoheterotrophs
Photoautotrophs
Autotrophs

70. Which compound gave rise to autotrophs?

[CEE 2023]

Chlorophyll
Coacervates
Amino acids
Carbohydrates

71. During starvation, which type of cell in Hydra is highly vacuolated?

[CEE 2023]

Musco-epithelial cell
Musculo-nutritive cell
Secretory cell
Gland cell

72. Which of the following is true for protozoa?

[CEE 2023]

One-celled
One vacuole
One nuclei
Have cell wall

73. In male frogs, loud croaking is due to:

[CEE 2023]

Vocal cord resonating
Vocal sacs with air resonating
Two pairs of vocal sacs
Well-developed vocal sacs

74. Which of the following can transmit AIDS?

[CEE 2023]

Breastfeeding
Kissing
Food or water contamination
Hugging

75. Which of the following is a major air pollutant?

[CEE 2023]

SO₂
NO₂
Lead
CO (carbon monoxide)

76. Ultrafiltration in the kidney is due to:

[CEE 2023]

Glomerular hydrostatic pressure exceeding colloidal and capsular hydrostatic pressure
Colloidal hydrostatic pressure greater than glomerular hydrostatic pressure
Capsular hydrostatic pressure greater than glomerular hydrostatic pressure
Osmotic pressure exceeding glomerular hydrostatic pressure

77. A group of taxa that is on the verge of extinction if the threat is not managed is called:

[CEE 2023]

Extinct
Rare
Vulnerable
Threatened

78. In babies, an enzyme is found for milk digestion.

[CEE 2023]

Rennin
Chymotrypsin
Pepsin
Lactase

79. Which of the following is involved in embryo attachment?

[CEE 2023]

Progesterone
Estrogen
FSH
Prolactin

80. When there is a positive and negative potential in the membrane before a stimulus, it is called:

[CEE 2023]

Resting potential
Action potential
Threshold potential
Hyper potential

81. A teenage boy was found very calm and relaxed. Which of the following CNS depressant make him calm and relax?

[CEE 2023]

Valium
LSD
Cocaine
Peyote

82. Which of the following is a stretchable tissue?

[CEE 2023]

Transitional epithelium
Columnar epithelium
Squamous epithelium
Cutaneous membrane

83. Parathyroid hormone:

[CEE 2023]

Decreases calcium and increases phosphorus in the blood
Increases calcium and decreases phosphorus in the blood
Maintains calcium and phosphorus levels in the blood
Decreases both calcium and phosphorus in the blood

84. When walking in water and getting infected with a parasite, which of the following can penetrate the skin?

[CEE 2023]

Ancylostoma
Schistosoma
Wuchereria
Trypanosoma

85. Which laryngotracheal cartilages are present in frogs?

[CEE 2023]

1 arytenoid and 2 cricoid
2 arytenoid and 1 cricoid
1 cricoid and 1 arytenoid
2 cricoid and 2 arytenoid

86. Chloragogen cell is analogous to:

[CEE 2023]

Kidney of vertebrate
Liver of vertebrate
Gut of vertebrate
Lungs of vertebrate

87. Heart of frog differs from mammals by the presence of:

[CEE 2023]

Sinus venosus
Tricuspid valve
Mitral valve
Two auricles

88. Wharton's duct is present in:

[CEE 2023]

Submandibular gland
Parotid gland
Sublingual gland
Infraorbital gland

89. Sudden reappearance of an ancestral character is known as:

[CEE 2023]

Atavism
Vestigial organ
Analogous organ
Homologous organ

90. Treatments for cancer except:

[CEE 2023]

Physiotherapy
Chemotherapy
Surgery
Radiotherapy

91. PCR was introduced by:

[CEE 2023]

Kary Mullis
Altman
Milstein
Kohler

92. Two negative interactions:

[CEE 2023]

Competition and Predation
Amensalism and Parasitism
Predation and Parasitism
All of the above

93. If the father is A unknown (assuming heterozygous A^O) and the mother is B homozygous (B^B), then the possibility of progeny is:

[CEE 2023]

A and AB
AB and B
O and B
AB and O

94. If the only person who was O negative dies in a population, then the gene for that blood group disappears. It is known as:

[CEE 2023]

Gene flow
Genetic drift
Mutation
Natural selection

95. The study of DNA and RNA is:

[CEE 2023]

Genetics
Genetic drift
Cytology
Molecular biology

96. Which of the following gives a 1:1 ratio in a monohybrid cross?

[CEE 2023]

TT × tt
tt × Tt
Tt × Tt
Tt × TT

97. DNA polymerase is used for:

[CEE 2023]

Forming DNA in the 5'→3' direction
Forming DNA in the 3'→5' direction
Forming mRNA in the 5'→3' direction
Forming mRNA in the 3'→5' direction

98. Structure present in the chromosome after the secondary constriction:

[CEE 2023]

Telomere
Satellite
Centromere
NOR (Nucleolar Organizing Region)

99. Who coined the term protoplasm?

[CEE 2023]

Purkinje
Von Mohl
Huxley
Kolliker

100. Which laryngotracheal cartilages are present in frogs?

[CEE 2023]

1 arytenoid and 2 cricoid
2 arytenoid and 1 cricoid
1 cricoid and 1 arytenoid
2 cricoid and 2 arytenoid

101. Chloragogen cell is analogous to:

[CEE 2023]

Kidney of vertebrate
Liver of vertebrate
Gut of vertebrate
Lungs of vertebrate

102. Heart of frog differs from mammals by the presence of:

[CEE 2023]

Sinus venosus
Tricuspid valve
Mitral valve
Two auricles

103. Wharton's duct is present in:

[CEE 2023]

Submandibular gland
Parotid gland
Sublingual gland
Infraorbital gland

104. Sudden reappearance of an ancestral character is known as:

[CEE 2023]

Atavism
Vestigial organ
Analogous organ
Homologous organ

105. When C¹⁴ is added to Uracil, we get which compound?

[CEE 2023]

RNA
DNA
Ribosome
Nucleotide

106. Siliqua fruit is given by:

[CEE 2023]

Bicarpellary ovary
Monocarpellary ovary
Tricarpellary ovary
Multicarpellary ovary

107. Conjoint vascular bundle is present in:

[CEE 2023]

Dicot stem
Monocot stem
Both dicot and monocot stem
Root

108. Explant is sterilized by:

[CEE 2023]

Autoclave
UV rays
Distillation
Passing through a filter paper

109. Commercial jute fibers are obtained from:

[CEE 2023]

Secondary phloem
Phellem
All parts outside the pith
Endodermis

110. Which of the following is a genetically modified organism?

[CEE 2023]

Agrobacterium-mediated technology in transformation
Crispr Cas9 gene editing
Micropropagation
Tissue culture

111. Which of the following is the correct photosynthesis absorption spectrum?

[CEE 2023]

White-yellow
White-green
Red-green
Violet-blue

112. Manipulation of genes to get disease-resistant crop of strong progeny is:

[CEE 2023]

Genetic engineering
DNA technology
Gene cloning
Gene mutation

113. Sal and Teak forests are found in:

[CEE 2023]

Tropical deciduous forest
Tropical rainforest
Broadleaf forest
Tropical needleleaf forest

114. Choose the mismatched one:

[CEE 2023]

Phaneras - visible
Bryo - mosses
Gymno - naked
Kryptos - hidden

115. What is the network of food chains called?

[CEE 2023]

Food web
Food cycle
Predation
Cannibalism

116. What is the endosperm of angiosperms?

[CEE 2023]

Haploid
Diploid
Triploid
Pentaploid

117. Why is grafting important?

[CEE 2023]

It helps to have desired genetic traits.
It can bring genetically strong progeny.
It gives rise to many plants.
It is economical.

118. Which of the following is true for archaebacteria?

[CEE 2023]

They are halophiles.
They are old living entities.
They are photosynthetic.
All of the above are true for some archaebacteria

119. What causes bolting in plants?

[CEE 2023]

Gibberellin
Auxin
Cytokinin
ABA (Abscisic Acid)

120. Mitochondria is due to:

[CEE 2023]

Presence of cristae and matrix.
Presence of naked DNA.
Presence of oxysomes.
All of the above

121. The major air pollutant is:

[CEE 2023]

CO
NO₂
SO₂
Lead

122. There is maximum plant diversity in the Terai region due to:

[CEE 2023]

Temperature
Soil pH
Precipitation
Altitude

123. Which of the following are true for beer and wine?

[CEE 2023]

Yeast used for fermentation of beer & bacteria for wine.
Beer is from fermented malt & wine is from fermented molasses.
Beer is from malt & wine is from fermented fruits.
Beer is formed from distillation and wine is from fermentation.

124. Who gave the sexual system of classification?

[CEE 2023]

Aristotle
Theophrastus
Carolus Linnaeus
Ernst Haeckel

125. Which of the following has the least similar organism compared to others?

[CEE 2023]

Class
Order
Family
Genus

126. The process where biological materials are preserved in a very cold environment is called:

[CEE 2023]

Cryopreservation
Cold storage
Cold chain
Vial

127. The flowers that never open, don't shed pollen, and have bisexual flowers are called:

[CEE 2023]

Cleistogamous flowers
Dichogamous flowers
Homogamous flowers
Heterogamous flowers

128. Ecesis refers to:

[CEE 2023]

Succession in a new place
The habitat it follows
Water stored in the place
Establishment of plants in a new habitat

129. Which of the following are tracheophytes?

[CEE 2023]

Bryophytes, pteridophytes, gymnosperms, angiosperm
Gymnosperms, pteridophytes, angiosperm
Gymnosperms, Pteridophytes
Gymnosperms, angiosperms

130. From which part of the plant do stilt roots originate?

[CEE 2023]

Lower internode
Upper internode
Lower node
Upper node

131. What type of dye is indigo?

[CEE 2023]

Vat dye
Basic dye
Phenolphthalein
Mordant

132. Which substance is commonly used as an electrode?

[CEE 2023]

Calomel (Hg₂Cl₂)
Corrosive sublimate (HgCl₂)
Zinc oxide (ZnO)
CuSO₄

133. (F₂CH-CHF)_n is a polymer of:

[CEE 2023]

Vinylidene fluoride
Tetrafluoroethylene (TFE)
1,1-difluoroethene
Vinyl fluoride

134. Which acid is found in apples?

[CEE 2023]

Lactic acid
Malic acid
Citric acid
Tartaric acid

135. Which is a strong acid?

[CEE 2023]

p-nitrophenol
m-nitrophenol
o-nitrophenol
All are weak acids

136. Which alkali metal reacts with nitride?

[CEE 2023]

Li
Na
Cs
K

137. Iron obtained from the blast furnace is:

[CEE 2023]

Wrought iron
Pig iron
Mild steel
Cast iron

138. There is a compound called X which has a fishy and rotten smell, and when it reacts with Cu, it gives a black precipitate. Identify the compound.

[CEE 2023]

PH₃
NH₃
CH₃SH
H₂S

139. Which allotrope of carbon is used as a superconductor?

[CEE 2023]

Fullerene
Graphite
Diamond
Lamp black

140. When carbon is sp² hybridized, each carbon atom is attached to how many other atoms?

[CEE 2023]

2
3
4
5

141. Removal of hydrogen is:

[CEE 2023]

Reduction
Oxidation
Hydration
Dehydrogenation

142. Common name of nitrobenzene:

[CEE 2023]

Oil of mirbane
Oil of vitriol
Oil of bitter almond
Oil of cinnamon

143. Lindlar's catalyst reacts with an alkyne to produce:

[CEE 2023]

Cis-alkene
Alkene
Trans-alkene
Alkane

144. CH₃MgX + CH₃CN → ?

[CEE 2023]

Acetone (after hydrolysis)
Ethanol (after hydrolysis)
Acetaldehyde (after hydrolysis)
Ethanoic acid (after hydrolysis)

145. Which compound, when treated with iodine and alkali, gives a hospital smell (iodoform test)?

[CEE 2023]

2-propanone (Acetone)
Propanal
3-pentanone
Iodine itself

146. Which of the following has the lowest pKa value?

[CEE 2023]

HCOOH (Formic acid)
CH₃COOH (Acetic acid)
CH₃CH₂COOH (Propanoic acid)
CH₃CH₂CH₂COOH (Butanoic acid)

147. Arrange the following elements in order of increasing atomic size: F, O, N, C

[CEE 2023]

F < O < N < C
C < N < O < F
F < N < O < C
C < O < N < F

148. Which of the following is not used in the bleaching of pulp?

[CEE 2023]

CaOCl₂ (Calcium hypochlorite)
NH₃ (Ammonia)
Cl₂ (Chlorine)
NaOH (Sodium hydroxide)

149. In the reaction CH₃COOH + conc. H₂SO₄ <0xE2><0x86><0x93>^- + H₂O → HSO₄^-, what is the name of the reaction?

[CEE 2023]

Disproportionation
Dehydration
Displacement
Substitution

150. Which of the following doesn't react with Grignard reagent?

[CEE 2023]

Ester to form tertiary alcohol
Aldehyde to form alcohol
Ketone to form tertiary alcohol
CO₂ to give carboxylic acid

151. Proton accelerates the hydrolysis of ester. The type of catalyst is:

[CEE 2023]

Acid catalyst
Promoter
Heterogeneous catalyst
Auto catalyst

152. For the reaction 2P + Q₂ → R, the rate law is Rate = k[P][Q₂]². If [P] is doubled and [Q] is halved, the rate will be:

[CEE 2023]

0.5 times
1 times
2 times
0.25 times

153. Given 0.2 N of NaOH, find pH:

[CEE 2023]

13.3
11.7
13.0
14.0

154. What is the concentration of the solution in ppm for 1 g/L of Arsenic?

[CEE 2023]

1000 ppm
1 ppm
100 ppm
10 ppm

155. Sodium bisulfite reacts with sodium iodate to give:

[CEE 2023]

Iodine
S
Sulfur dioxide (SO₂)
Hydroiodic acid (HI)

156. The lower density of ice than water is due to:

[CEE 2023]

A cage-like structure formed due to intermolecular hydrogen bonding
A cage-like structure formed due to intramolecular hydrogen bonding
Covalent bonds
Van der Waals forces

157. Identify X in the reaction: PhCH=CHCOOH + X → CH₃COONa + (CH₂COO)₂O

[CEE 2023]

CH₃COONa
CH₃COOH
(CH₃CO)₂O
NaOH

158. An amino acid has two functional groups. If the amino acid undergoes decarboxylation, it forms:

[CEE 2023]

Primary amine
Alcohol
Carboxylic acid
Ethanol

159. The empirical formula is CH₂O. What can be its molecular formula?

[CEE 2023]

CH₂O₂
C₂H₄O
CH₂O
C₂H₂O₅

160. An element X (atm. mass 30) forms 60% & other element Y (at mass 13) forms 40%. Find the empirical formula.

[CEE 2023]

X₂Y₃
X₃Y₂
XY₂
X₃Y

161. Which of the following reacts with Tollens's reagent depositing a silver mirror?

[CEE 2023]

Acetaldehyde
Acetone
Ethanol
Acetic acid

162. Which of the following has zero dipole moment?

[CEE 2023]

CCl₄
CHCl₃
CH₃Cl
CHCl₃ (repeated option)

163. Bohr model failed to explain:

[CEE 2023]

Stark & Zeeman effect
Hydrogen spectrum
Atomic spectrum
Photoelectric effect

164. What is the oxidation state of sulfur in H₂SO₄?

[CEE 2023]

+2
+4
+6
+8

165. Which allotrope of phosphorus produces phosphorescence?

[CEE 2023]

White phosphorus
Red phosphorus
Black phosphorus
Scarlet phosphorus

166. Which of the following is isoelectronic with K⁺?

[CEE 2023]

Ar
Na⁺
S
Ca⁺⁺

167. Which of the following is not used as a reducing agent in metallurgical processes?

[CEE 2023]

CO
CO₂
H₂
C

168. Which element, when burned at room temperature, produces a gaseous product?

[CEE 2023]

Na (Sodium)
H (Hydrogen)
S (Sulfur)
O (Oxygen)

169. Identify the type of reaction: C₁₂H₂₂O₁₁ + conc. H₂SO₄ → 12C + H₂SO₄ + 11H₂O

[CEE 2023]

dehydration
substitution
oxidation
none of the above

170. A person went to clean an unused well. After some time, he was found dead due to which gas?

[CEE 2023]

CO
CO₂
SO₂
HCN

171. Chemists don't mind the composition of H₂S, whether obtained from the stomach or made in the lab. This is due to:

[CEE 2023]

The law of definite proportion
The law of multiple proportion
The law of conservation of mass
The law of reciprocal proportion

172. Which is the heaviest liquid?

[CEE 2023]

Mercury (Hg)
Water (H₂O)
Glycerol
Ammonia (NH₃)

173. Which has maximum catenation property?

[CEE 2023]

S (Sulfur)
C (Carbon)
Si (Silicon)
O (Oxygen)

174. Phenol reacts with chloroform & NaOH to form?

[CEE 2023]

Salicylic acid
Salicyaldehyde
Benzoic acid
Carbalamine

175. Which is used in reducing body temperature?

[CEE 2023]

Antipyretic
Analgesic
Antiseptic
Disinfectant

176. Which nutrient is important for flowering and seeding in plants?

[CEE 2023]

Phosphorus (P)
Nitrogen (N)
Potassium (K)
Calcium (Ca)

177. Which of the following species contains 10 electrons and 11 protons?

[CEE 2023]

F^-
Ne
Na⁺
O^2-

178. KIDNEY = 54114, BRAIN = ?

[CEE 2023]

34/10
32/22
54/22
61/10

179. 2, 12, 30, 56, 92, ?, 108

[CEE 2023]

112
116
120
128

(c) The differences between consecutive terms are: 12-2 = 10, 30-12 = 18, 56-30 = 26, 92-56 = 36. The differences of these differences are: 18-10 = 8, 26-18 = 8, 36-26 = 10. This pattern is not very clear. Let's try another approach. The terms can be written as: 1³ + 1 = 2, 2³ + 4 = 12, 3³ + 3 = 30, 4³ - 8 = 56, 5³ - 33 = 92, ?. The pattern is not consistent. Let's try differences again: 10, 18, 26, 36. Second differences: 8, 8, 10. Third differences: 0, 2. Not clear. Let's try writing the terms as n * (n+something). 1 * 2 = 2, 2 * 6 = 12, 3 * 10 = 30, 4 * 14 = 56, 5 * 18.4 = 92. Not fitting. Let's look at the sequence again: 2, 12, 30, 56, 92, ?, 108. Differences: 10, 18, 26, 36, ?, 16. Second differences: 8, 8, 10, ?, ?. This is still unclear. Let's assume the sequence follows a pattern where the differences increase by roughly 8. So after 10, 18, 26, 36, the next difference might be 36 + 8 = 44. Then the term would be 92 + 44 = 136. This doesn't match options. Let's try 36 + 10 = 46. Then 92 + 46 = 138. Not matching. Let's try working backwards from the last term. If the difference after ? is 16, then the difference before ? might have been around 10. So, 36+10 = 46. 92+46 = 138. No. Let's look at the options. If the next term is 120. Differences: 10, 18, 26, 36, 28, -12. Doesn't seem right. Let's try differences again: 10, 18, 26, 36. The next difference could be 36 + 8 = 44, leading to 92 + 44 = 136. Or it could be around 36 + 12 = 48, leading to 92 + 48 = 140. None match. Let's try another pattern. 1*2 = 2, 3*4 = 12, 5*6 = 30, 7*8 = 56, 9*10 = 90 (close to 92), 11*12 = 132 (close to options), 13*8.something = 108. Not fitting. Let's assume there is a simple arithmetic progression in the second differences: 8, 8, 10. The next could be 10, then the third could be 2. So the sequence of differences would be 10, 18, 26, 36, 36+10=46, 46+10=56 (should be 108-138=-30). This is not working. Let's try the option 120. Differences: 10, 18, 26, 36, 28, -12. Second differences: 8, 8, 10, -8, -40. Doesn't seem correct. There might be an error in the question or options.

180. A B (2 ticket) + A C (3 ticket) = cost $77
A B (3 ticket) + A C (2 ticket) = cost $73
What is the cost for A B & A C?

[CEE 2023]

A B = $37, AC = $40
A B = $40, AC = $37
A B = $35, AC = $42
A B = $42, AC = $35

181. Out of 500 questions, a boy answered 800/0 correctly for 250 questions. How much percentage should be correct questions from the remaining to get over 0/0?

[CEE 2023]

10%
20%
25%
50%

182. Which one of the following dice is correct? The image for this question is not provided.

[CEE 2023]

N E P
N L E
E P A
L I E

183. Reading from one of the corner makes meaningful word. What is its fifth letter.
T R C S Y H I M E

[CEE 2023]

Y
E
I
S

184. 395E441H213918?

[CEE 2023]

E
D
F
G

185. A training college has to conduct a refresher course for teachers of six different subjects: Microbiology (M), Physiology (P), Surgery (S), Anatomy (A), Biochemistry (B), and Orthopedics (O) from 22nd to 28th July. Following conditions apply:
i. Course should start with Physiology (P).
ii. 23rd July being Sunday, should be a holiday.
iii. Course should end with Biochemistry (B).
iv. Surgery (S) should be immediately after the holiday.
v. There should be a gap of one day between Anatomy (A) and Orthopedics (O).
Based on the above information, which subject falls on Tuesday?

[CEE 2023]

Biochemistry
Physiology
Surgery
Microbiology

186. The sum of the ages of five children, with an age gap of 3 years, is 60. What is the age of the youngest one?

[CEE 2023]

6
4
2
8

187. A piece of paper is folded & cut as shown below in the question figure. From the given answer figures, indicate how it will appear when unfolded.

[CEE 2023]

Image 1
Image 2
Image 3
Image 4

188. Choose the correct statement regarding the cause and effect relationship between the following statements.
Statement I: To study in BPH, one has to appear in a single common exam for any college they want to join.
Statement II: Medical Education Commission (MEC) is responsible for conducting a common exam for BPH.

[CEE 2023]

Statement I is the cause, and statement II is the effect.
Statement I is the effect, and statement II is the cause.
Both statements I and II are independent causes and effects.
Both statements I and II are effects of a common cause.

189. A boy said pointing to a girl, "She is the daughter of the son of the father of my uncle." What is the relation between them?

[CEE 2023]

Sister
Daughter in law
Nephew
Mother

190. If South East becomes North, and South West becomes East, then what will West become?

[CEE 2023]

South East
North East
North
South

191. In the kitchen, boxes of vegetables, salads, fruits, and snacks were stacked in a sequence. The first box was of fruits, and the vegetable was placed between snacks and salads. If the box of fruits was followed by the box of snacks, then what was the content of the last box?

[CEE 2023]

Snacks
Vegetables
Fruits
Salads

192. A ladder of length 100 m rests against the wall and makes angle 45° with the horizontal. Find the distance foot of ladder & wall.

[CEE 2023]

100/√2 m
100√2 m
200√2 m
200/√2 m

193. 44851F34756K14525G33632?

[CEE 2023]

E
D
F
G