Science Content-Basic Chemistry (CTET Paper-II Science): Questions 26 - 31 of 31

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Question number: 26

» Science Content » Basic Chemistry

MCQ▾

Question

Metallic oxides are ________ in nature.

Choices

Choice (4) Response

a.

Neutral

b.

Amphoteric

c.

Basic

d.

Acidic

Question number: 27

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

The calorific value of a fuel whose 1.5 kg of mass-produces 67, 500 kJ of heat on burning completely will be (May)

Choices

Choice (4) Response

a.

30, 000 kJkg

b.

1, 01, 250 kgJ

c.

1, 01, 250 kJkg

d.

45, 000 kJkg

Question number: 28

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

Phosphorus is kept in water to (May)

Choices

Choice (4) Response

a.

Prevent its contact with oxygen

b.

Denature it

c.

Purify water

d.

Make water soft

Question number: 29

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

Select a compound, which does not have carbon.

Choices

Choice (4) Response

a.

Glucose

b.

Sulphuric acid

c.

Ethanoic acid

d.

Methane

Question number: 30

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

The most abundant element found in the earth’s crust is

Choices

Choice (4) Response

a.

Nitrogen

b.

Silicon

c.

Carbon

d.

Oxygen

Question number: 31

» Science Content » Basic Chemistry

Appeared in Year: 2012

MCQ▾

Question

Extraction of copper and iron from their ores involves mainly following steps:

(1) Reduction to metal (2) Enrichment

(3) Refinement (4) Roasting/Calcination

The proper sequence of these steps is (Nov)

Choices

Choice (4) Response

a.

(1), (2), (4), (3)

b.

(1), (4), (2), (3)

c.

(2), (1), (4), (3)

d.

(2), (4), (1), (3)

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