NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 1350 - 1354 of 1732

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Question number: 1350

» Chemistry » Physical and Chemical Changes

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MCQ▾

Question

Chemical name of vinegar is:

Choices

Choice (4) Response

a.

Acetic acid

b.

Calcium hydroxide

c.

Calcium carbonate

d.

Hydrochloric acid

Question number: 1351

» Chemistry » Physical and Chemical Changes

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MCQ▾

Question

Which of the following shows an example of chemical change?

Choices

Choice (4) Response

a.

Dissolving sugar in water

Find the example of chemical change : Choice A

Find the Example of Chemical Change: Choice A

Find the example of chemical change

b.

Crushing a piece of tissue paper

Find the example of chemical change : Choice B

Find the Example of Chemical Change: Choice B

Find the example of chemical change

c.

Burning of wood

Find the example of chemical change : Choice C

Find the Example of Chemical Change: Choice C

Find the example of chemical change

d.

Melting of ice

Find the example of chemical change : Choice D

Find the Example of Chemical Change: Choice D

Find the example of chemical change

Question number: 1352

» Chemistry » Physical and Chemical Changes

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MCQ▾

Question

Formation of big and pure crystal of a substance from the saturated solution is known as:

Choices

Choice (4) Response

a.

Crystallization

b.

Galvanization

c.

Precipitation

d.

Sublimation

Question number: 1353

» Biology » Nutrition in Animals

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MCQ▾

Question

In how many parts stomach of a plant eating animal is divided?

Choices

Choice (4) Response

a.

2

b.

4

c.

3

d.

1

Question number: 1354

» Biology » Nutrition in Animals

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MCQ▾

Question

Which of the following is not true with respect to teeth.

Choices

Choice (4) Response

a.

Molars are also called grinding teeth.

b.

We should clean our teeth properly to avoid the formation of plague.

c.

There are 4 incisor teeth present in the mouth.

d.

The portion inside the gum is known as crown.

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