Chemistry-Physical and Chemical Changes (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 16 - 21 of 42

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Question number: 16

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

The kinetic energy of the particle increases on increasing the

Choices

Choice (4) Response
a.

pressure

b.

temperature

c.

humidity

d. All of the above

Question number: 17

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

The group of sedimentary minerals including, gypsum, potash salt and sodium salt are formed as a result of which process?

Choices

Choice (4) Response
a.

Decomposition

b.

Evaporation

c.

Distillation

d. All of the above

Question number: 18

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

When a nuclear change occurs, what happens to the energy?

Choices

Choice (4) Response
a.

It is destroyed

b.

It is released

c.

It remains unchanged

d. All of the above

Question number: 19

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

A student took five test tubes containing solutions of different colors marked I, II, III, IV and V as shown below. The test tubes containing copper sulphate and ferrous sulphate solution could be the tubes

Five test tubes containing different colors

Five Test Tubes Containing Different Colors

Find the test tube containing copper sulphate and ferrous sulphate

Choices

Choice (4) Response
a.

IV and V

b.

II and IV

c.

I and V

d.

III and V

Question number: 20

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

A large iceberg melts at the base but not at the top because

Choices

Choice (4) Response
a.

higher pressure at the base lowers the melting point of ice

b.

ice at the base contains impurities

c.

the base of iceberg remains in warmer conditions

d.

ice at the top is different kind

Question number: 21

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Which of these methods is used to extract alcohol from a mixture of alcohol and water?

Choices

Choice (4) Response
a.

Oxidation

b.

Bleaching

c.

Crystallization

d.

Distillation

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