KVPY Stream-SA (Class 11) Chemistry: Questions 56 - 59 of 133

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Question number: 56

» Basic Concepts in Chemistry » Chemical Equations and Stoichiometry

Appeared in Year: 2015

MCQ▾

Question

The major products of the following reaction

ZnS(s)+O2(g)heat?

Choices

Choice (4) Response

a.

ZnOandSO2

b.

ZnSO4andSO3

c.

ZnSO4andSO2

d.

ZnandSO

Question number: 57

» Organic Compounds With Oxygen » Alcohols » Inroduction

Appeared in Year: 2015

MCQ▾

Question

A sweet smelling compound formed by reacting acetic acid with ethanol in the presence of hydrochloric acid is

Choices

Choice (4) Response

a.

CH3COOC2H5

b.

C2H5COOCH3

c.

CH3OH

d.

C2H5COOH

Question number: 58

» Atomic Structure » Nature of Electromagnetic Radiation

Assertion-Reason▾

Assertion (Ꭺ)

Threshold frequency is a characteristic for a metal.

Reason (Ꭱ)

Threshold frequency is a maximum frequency required for the ejection of electron from the metal surface.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Ꭺ is true but Ꭱ is false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Question number: 59

» Hydrocarbons » Aromatic Hydrocarbons » Benzene - Structure and Aromaticity

Appeared in Year: 2014

MCQ▾

Question

A compound X formed after heating coke with lime react with water to give Y, which on passing over red-hot iron at 8730 produces Z. The compound Z is

Choices

Choice (4) Response

a.

A reaction with water of X produces Z: Choice A

A Reaction With Water of X Produces Z: Choice A

Find the compound produces by reaction of X with water

b.

 A reaction with water of X produces Z: Choice B

a Reaction With Water of X Produces Z: Choice B

Find the compound produces by reaction of X with water

c.

 A reaction with water of X produces Z: Choice C

a Reaction With Water of X Produces Z: Choice C

Find the compound produces by reaction of X with water

d.

A reaction with water of X produces Z: Choice D

A Reaction With Water of X Produces Z: Choice D

Find the compound produces by reaction of X with water

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