NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 1436 - 1443 of 1732

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Question number: 1436

» Biology » Life on Earth and Soil

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MCQ▾

Question

Which of the following does not increase humus in the soil?

Choices

Choice (4)Response

a.

Dead animals

b.

Dung

c.

Plants leaves

d.

Insecticides

Question number: 1437

» Biology » Life on Earth and Soil

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MCQ▾

Question

Which of the following element make the soil fertile and provides nutrients to the plants?

Choices

Choice (4)Response

a.

Clay

b.

Humus

c.

Sand

d.

Gravel

Passage

Solution of is kept in a bottle. Answer the questions.

Question number: 1438 (1 of 4 Based on Passage) Show Passage

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Solution will turn blue litmus to?

Choices

Choice (4)Response

a.

Blue

b.

Cannot be determined

c.

Red

d.

Question does not provide sufficient data or is vague

Question number: 1439 (2 of 4 Based on Passage) Show Passage

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Taste of the solution will be:

Choices

Choice (4)Response

a.

Sour

b.

Bitter

c.

Sweet

d.

Cannot be determined

Question number: 1440 (3 of 4 Based on Passage) Show Passage

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Solution will turn turmeric paper to?

Choices

Choice (4)Response

a.

Green

b.

No change

c.

Red

d.

All of the above

Question number: 1441 (4 of 4 Based on Passage) Show Passage

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Solution will turn China rose solution to?

Choices

Choice (4)Response

a.

Red

b.

Green

c.

Dark pink

d.

None of the above

Question number: 1442

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

The acid produced in our body to kill bacteria is:

Choices

Choice (4)Response

a.

Bicarbonate

b.

Carbonic acid

c.

Hydrochloric acid

d.

None of the above

Question number: 1443

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Chemical name of chalk is?

Choices

Choice (4)Response

a.

Calcium carbonate

b.

Calcium oxide

c.

Both a. and b. are correct

d.

None of the above

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