GameChanger Academy

Physical chemistry

1. The solid state

2. Language of Chemistry

3. Gaseous and Liquid states

4. Stoichiometry

5. Solutions

6. Structure of Atom

7. Chemical equilibrium

8. Nuclear chemistry (Radioactivity)

9. Ionic equilibrium

10. Chemical Bonding

11. Chemical kinetics

12. Concepts of Acids, Bases and Salts

13. Surface catalysis and Colloids

14. Redox reactions

15. Chemical energetics

16. Volumetric analysis

17. Electrochemistry

Inorganic chemistry

18. Introduction

19. Periodic table

20. Hydrogen and its compounds

21. General aspects of Metallergy

22. Alkali metals

23. Alkaline metals

24. Boron family

25. Carbon family

26. Nitrogen family

27. Oxygen family

28. Fluorine family

29. Inert gases

30. Transition metals

31. Coordination compounds

32. Analytical chemistry

Organic chemistry

33. Purification and analysis of organic compounds

34. Nomenclature of Organic compounds

35. Reaction Mechanisms

36. Hydrocarbons

37. Haloalkanes (Alkyl halides)

38. Alcohol, Phenol and Ether

39. Aldehyde and Ketones

40. Carboxylic acids

41. Compounds conatining Nitrogen

42. Polymers

43. Chemistry in daily life

Physical chemistry

6. Structure of Atom

1. How many protons, electrons and neutrons are present in the element ⁴³₂₁X? [IOM 2008]

[IOM 2008]

(a) 22, 21, 21
(b) 21, 21, 22
(c) 22, 22, 22
(d) 22, 21, 22

2. Atomic no. of Arsenic is 33. What will be the electronic configuration of outermost shell? [MOE 2064]

[MOE 2064]

(a) 4s² 4p¹
(b) 4s² 4p²
(c) 4s² 4p³
(d) 4s² 4p⁴

3. The electron in an atom [MOE 2062]

[MOE 2062]

(a) Moves randomly around the nucleus
(b) Has fixed space around the nucleus
(c) Is stationary in various energy levels
(d) Moves around its nucleus in definite energy level

4. Which of the following does not belong to 3d series? [MOE 2003]

[MOE 2003]

(a) Sc
(b) Ti
(c) Fe
(d) Pd

5. Which is correct? [MOE 2002]

[MOE 2002]

(a) An orbit with principle quantum number n = 3 has 9 orbitals
(b) When 25 gm solute saturates 100 gm water solubility is 25 gm
(c) Carbylamine rxn is shown by 2° amine only
(d) Benzaldehyde doesn't show Cannizaro's reaction

6. Iron has atomic number 26. What is the electronic configuration of iron cation which can form the complex [Fe(CN)₆]^4-? Ar = 1s² 2s² 2p⁶ 3s² 3p⁶ [MOE 2058]

[MOE 2058]

[Ar] 3d² 4s²
[Ar] 3d⁴ 4s²
[Ar] 3d⁵ 4s⁰
[Ar] 3d⁶ 4s⁰

7. Which one of the following statements is not correct? [MOE 2000]

[MOE 2000]

(a) 2p_x, 2p_y and 2p_z electron orbitals are in the same energy states
(b) A 2s electron is in lower energy state than a 2p electron
(c) The electronic configuration of carbon atom is 1s² 2s² 2p_x²
(d) The energy level of a 3d electron is higher than 4s electron

8. Magnetic quantum no. of an atom gives [MOE 2055]

[MOE 2055]

(a) Orientation of electrons in space
(b) Principal shell occupied by e^-
(c) +ve and -ve spin of e^-
(d) Orbital of e^-

9. Which of the following sequence is correct if given elements are arranged according to ascending atomic no.? [IOM 2008]

[IOM 2008]

(a) Fe, Co, Ni, Cu
(b) Co, Fe, Ni, Cu
(c) Fe, Ni, Co, Cu
(d) Cu, Fe, Co, Ni

10. Which of the following electron denoted by the following quantum no. has the highest energy? [I.E. 2009]

[I.E. 2009]

(a) 3, 2, 1, 1/2
(b) 4, 2, -1, -1/2
(c) 3, 1, 0, -1/2
(d) 5, 0, 0, 1/2

11. If 75% of substance decay in 32 minutes then, find how much time it will take to decay 50% of same substance. [IOM 2009]

[IOM 2009]

(a) 10 min
(b) 80 min
(c) 64 min
(d) 16 min

12. The half life of a radioactive substance is 2 months, then the amount of substance left in 1 year [IOM 2009]

[IOM 2009]

(a) M/64
(b) M/32
(c) M/16
(d) M/8

13. Concept of quantization of energy was introduced by [MOE 2009]

[MOE 2009]

(a) Bohr
(b) Sommerfeld
(c) Dalton
(d) Heisenberg

14. Atomic orbitals are filled up in the ground state in order of the increasing energy level. This is the statement of ........ [MOE 2009]

[MOE 2009]

(a) Pauli's exclusion principle
(b) Hund's rule
(c) Aufbau principle
(d) de-Broglie's hypothesis

15. In any given orbit electron fill up in increasing order of energy, it is known as [BPKIHS 2006]

[BPKIHS 2006]

(a) Aufbau principle
(b) Pauli's exclusion principle
(c) Hund's rule
(d) Uncertainty principle

16. Equal volume of all gases at same temperature and pressure has equal number of molecules is the statement of [Bangladesh 2008]

[Bangladesh 2008]

(a) Dalton's law
(b) Berzelius hypothesis
(c) Avogadro's law
(d) Charle's law

17. An orbital have azimuthal quantum no l = 1. The Shape of orbital is [Bangladesh 2008]

[Bangladesh 2008]

(a) Spherical
(b) Dumb-bell
(c) Double dumb bell
(d) None

18. DDT on exposure to water decomposes. It's half life is 10 years. How much time will it take for its 90% decomposition? [BPKIHS 2007]

[BPKIHS 2007]

(a) 40 years
(b) 70 years
(c) 500 years
(d) 700 years

19. The configuration 1s¹, 2s¹ 2p⁶ shows [BPKIHS 2006]

[BPKIHS 2006]

(a) Excited state of nitrogen ion
(b) Excited state of oxygen ion
(c) Ground state of fluorine
(d) Excited state of fluorine

20. The half life of a radioactive isotope is 10 hours, how much of its reactivity will remain after 30 hours? [BPKIHS 2005]

[BPKIHS 2005]

(a) 1/8
(b) 1/4
(c) 1/3
(d) 1/2

21. The splitting of spectral lines under the effect of magnetic field is [BPKIHS 2004]

[BPKIHS 2004]

(a) Stark effect
(b) Zeeman effect
(c) Compton effect
(d) Pressure effect

22. Shape of orbital is given by the ........ Quantum number [BPKIHS]

[BPKIHS]

(a) Principal
(b) Azimuthal
(c) Magnetic
(d) Spin

23. The increasing order for the values of e/m for electron, proton, neutron and α-particle is [I.E.]

[I.E.]

(a) e, p, n, α
(b) n, p, α, e
(c) n, p, e, α
(d) n, α, p, e

24. Maximum no. of orbitals in a shell is given by [BPKIHS]

[BPKIHS]

(a) n
(b) 2n
(c) (2n + 1)
(d) (n + 1)

25. Which of the following shows highest magnetic moment? [BPKIHS 1994, I.E. 2011]

[BPKIHS 1994, I.E. 2011]

(a) V³⁺
(b) Cr³⁺
(c) Fe³⁺
(d) Co³⁺

26. An electron jumps from higher orbit to lower orbit. Then energy of electron. [I.E. 2005]

[I.E. 2005]

(a) Increases
(b) Decreases
(c) Remains constant
(d) 1st increases then decreases

27. Half life of a radioactive substance is 1060 years, what is its average life? [I.E.]

[I.E.]

(a) 1530 year
(b) 1460 year
(c) 1510 year
(d) 1410 year

28. The silicon atom has unpaired electrons which is due to [I.E.]

[I.E.]

(a) Hund's rule
(b) Pauli's exclusion principle
(c) Aufbau principle
(d) Bohr's principle

29. In sun the source of energy is [I.E./BPKIHS]

[I.E., BPKIHS]

(a) Fusion of heavy nuclei
(b) Fission of heavy nuclei
(c) Fusion of hydrogen atom
(d) Fission of uranium atom