NCERT Based General Studies (GS): Questions 3073 - 3078 of 3560

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 3560 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 700.00 or

Question number: 3073

» Science » Class-7 NCERT » Heat (Hot and Cold)

MCQ▾

Question

Ice-cream, Ice, juice, things placed in the refrigerator is:

Choices

Choice (4) Response

a.

Hot objects & Warm objects

b.

Cold objects

c.

Warm objects

d.

Hot objects

Question number: 3074

» Science » Class-7 NCERT » Acids, Bases and Salts (Acids and Bases)

MCQ▾

Question

Substances, which are used to test whether a substance is acidic or basic, are called as:

Choices

Choice (4) Response

a.

Cation

b.

Indicators

c.

Anions

d.

Litmus

Question number: 3075

» Science » Class-7 NCERT » Physical and Chemical Changes (Rusting of Iron)

MCQ▾

Question

The simplest way to prevent rusting is:

Choices

Choice (4) Response

a.

To apply coat of paint

b.

To apply a coat of grease

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 3076

» Science » Class-7 NCERT » Physical and Chemical Changes (Chemical Changes)

MCQ▾

Question

Chemical reaction involves the gain or loss of energy is called as:

Choices

Choice (4) Response

a.

Exothermic reaction

b.

Explosion

c.

Endothermic reaction

d.

Question does not provide sufficient data or is vague

Question number: 3077

» Science » Class-7 NCERT » Weather, Climate and Adaptations of Animals to Climate (Weather)

MCQ▾

Question

Why does it rain?

Choices

Choice (4) Response

a.

By lowering the temperature or bringing in more water

b.

Relative humidity must be 100 percent

c.

Air must be saturated

d.

All a. , b. and c. are correct

Question number: 3078

» Science » Class-7 NCERT » Physical and Chemical Changes (Rusting of Iron)

MCQ▾

Question

Crystallisation is defined as:

Choices

Choice (4) Response

a.

Crystallisation is better than evaporation

b.

Crystallisation separates a pure solid in the form of its crystals from a solution

c.

Process of obtaining large crystals of pure substance from a concentrated solution

d.

All a. , b. and c. are correct

Sign In