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CHEMISTRY quiz-7

Update on: 04 Apr 2019, 04:05 PM

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1. ASSERTION : Acetylene reacts with sodamide to evolve H2 gas. REASON : Acetylene is a weaker acid than ammonia.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

2. ASSERTION : Due to Frenkel defect, density of the crystalline solid decreases. REASON : In Frenkel defect, a cation or an anion leaves the crystal.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

3. ASSERTION : In corrosion, a metal is reduced by gain of electrons. REASON : Corrosion does not coat the surfaces of metallic objects with oxides.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

4. ASSERTION : Gold is recovered from its solution containing aurocyanide complex by adding zinc dust. REASON : Zinc is more electropositive than gold.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

5. ASSERTION : Nitrogen and oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen. REASON : The reaction between nitrogen and oxygen requires high temperature.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

6. ASSERTION : All the octahedral complexes of Ni2+ must be outer orbital complexes. REASON : Outer orbital octahedral complexes are given by weak ligands.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

7. ASSERTION : CH3OH undergoes esterification faster than (CH3)3COH. REASON : The reaction between an acid and alcohol in presence of dry HCl gas to give ester is known as esterification process.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

8. ASSERTION : In order to convert R–Cl to pure R–NH2, Gabriel pthalimide synthesis can be used. REASON : With proper choice of alkyl halides, pthalimide synthesis can be used to prepare 1°, 2° or 3° amines.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

9. ASSERTION : Both formic acid and oxalic acid decolourize KMnO4 solution. REASON : Both are easily oxidised to CO2 and H2O.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

10. ASSERTION : Tautomerism is exhibited by a compound which is a mixture of two labile forms in dynamic equilibrium. REASON : Nitroalkanes do not show tautomerism.

a) Both ASSERTION and REASON Are True and REASON Is the Correct Explanation of ASSERTION

b) Both ASSERTION and REASON Are True but REASON Is Not the Correct Explanation of ASSERTION

c) ASSERTION Is True but REASON Is False

d) Both ASSERTION and REASON are False.

Correct! Wrong!

CHEMISTRY quiz-7

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