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CEE
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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
18
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
33
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
44
Physical chemistry
1. The solid state
Edit
1.
Diamond is a
[
KU 2008
]
Metallic crystal
Electrovalent crystal
Covalent crystal
Ionic crystal
(
c
)
Diamond has a 3D network of covalent carbon-carbon bonds.
2.
The crystal for which a = b ≠ c, α = β = 90° and γ = 120° is
[
MOE 2065
]
Cubic system
Triclinic system
Hexagonal system
Monoclinic system
(
c
)
Hexagonal system has these parameters: a = b ≠ c, α = β = 90°, γ = 120°.
3.
In Schottky defect
[
IOM 2007
]
Equal no. of cations and anions occupy interstitial space
Equal no. of cations and anions are missing from interstitial space
Density decreases
Unequal no. of cations and anions are missing from interstitial space
(
b
)
Schottky defect involves missing cation-anion pairs, maintaining electrical neutrality.
4.
A crystal of graphite contains
[
MOE 2061
]
Only covalent bond
Covalent and electrovalent bond
Only electrovalent bond
Covalent and Van der Waal's bond
(
d
)
Graphite has covalent bonds within layers and van der Waals forces between layers.
5.
How many Cl
-
ions are there around Na
+
ions in NaCl crystal?
[
I.E.,
BPKIHS
]
3
4
6
8
(
c
)
In NaCl crystal, each Na
+
is octahedrally surrounded by 6 Cl
-
ions.
6.
On mixing trivalent impurity in a crystal lattice of Si, type of semiconductor thus formed is
[
IOM,
MOE
]
p-type
n-type
np-type
none
(
a
)
Trivalent impurities (e.g., Boron) create electron holes → p-type semiconductor.
7.
Bragg's law is given by equation
[
IOM
]
nλ = 2θsin θ
nλ = 2d sin θ
2nλ = 2d sin θ
2nλ = 1/2 d sin θ
(
b
)
Bragg's Law: nλ = 2d sinθ, where d = interplanar distance, θ = glancing angle.