CH-01
December - Examination 2018 B.Sc. Pt. I Examination
Inorganic Chemistry Paper - CH-01
Time : 3 Hours ] [ Max. Marks :- 50
Note: The question paper is divided into three sections A, B and C. Write answers as per the given instructions.
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Section - A 10
×
1 = 10 (Very Short Answer Type Questions)Note: Answer all Questions. As per the nature of the question delimit your answer in one word, one sentence or maximum up to 30 words. Each question carries 1 mark.
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467
CH-01 / 900 / 5 (2) (Contd.)
(ii) Define solvation energy.
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(iii) Which bond is formed by collateral-overlapping of p-p orbitals?
p-p
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(iv) Why the surface of freshly cut metal is shiny?
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(v) Give formula for calculation of % ionic character?
%
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(vi) What is the energy gap between 1S and 2P band called?
1S
d
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(vii) What are Crown Ethers? Give one example.
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(viii) Why the alkali metals are strong reducing agents?
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(ix) Give full name and structure of EDTA.
EDTA
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(x) How will you obtain B2H6 from BF3.
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Section - B 4
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5 = 20 (Short Answer Type Questions)Note: Answer any four question. Each answer should not exceed 200 words. Each question carries 5 marks.
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2) What is lattice energy? Discuss the factors affecting lattice energy.
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3) What are semiconductors? Discuss its types with suitable examples.
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4) BaSO4 is insoluble in water while MgSO4 is soluble, Why?
BaSO4
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5) Explain type of hybridisation, no of unpaired electrons and geometry of NH3 molucule?
NH3
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6) How does the Molecular orbital theory is better than valence bond
CH-01 / 900 / 5 (4) (Contd.)
8) What do you mean by Na/K pump? Explain its function.
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9) What are borohydrides? Explain with examples.
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Section - C 2
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10 = 20 (Long Answer Type Questions)Note: Answer any two questions. You have to delimit your each answer maximum upto 500 words. Each question carries 10 marks.
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10) Discuss valence bond theory taking example of hydrogen molecule.
Also explain its limitation.
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11) What are electron deficient compounds? Explain the formation of three centered - 2 electron bond in diborane. Draw suitable diagram.
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12) What are inter-halogen compounds? Give one method of preparation example and geometry each of AB3 and AB6 type compounds. Also discuss the structure of IF5 and IF7.
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IF5d
IF7.13) Discuss the elements of S-block on following basis:
S-
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(i) Ionisation Potential /
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(ii) Electronic Configuration /
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(iii) Oxidation state /
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(iv) Atomic radii /
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