NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 1454 - 1461 of 1732

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Question number: 1454

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Substance used to test the chemical nature of any substance is known as:

Choices

Choice (4) Response

a.

Base

b.

Indicator

c.

Acid

d.

Alkali

Question number: 1455

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Which of the following is a synthetic indicator?

Choices

Choice (4) Response

a.

Hydrangea

b.

Methyl Orange

c.

Litmus paper

d.

Question does not provide sufficient data or is vague

Question number: 1456

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Acids when react with carbonates and bicarbonates produce which gas?

Choices

Choice (4) Response

a.

Hydrogen

b.

Carbon

c.

Carbon dioxide

d.

Question does not provide sufficient data or is vague

Question number: 1457

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

is known as:

Choices

Choice (4) Response

a.

Vinegar

b.

Common salt

c.

Lime water

d.

None of the above

Question number: 1458

» Chemistry » Acid, Base and Salts

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MCQ▾

Question

Which of the following compound contains weak base?

Choices

Choice (4) Response

a.

Antacid

b.

Bleach

c.

Soft drinks

d.

Coffee

Question number: 1459

» Biology » Life on Earth and Soil

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MCQ▾

Question

Horizon B is also known as:

Choices

Choice (4) Response

a.

Bed rock

b.

Top soil

c.

Sub soil

d.

None of the above

Question number: 1460

» Biology » Life on Earth and Soil

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MCQ▾

Question

Which of the following statement is not true for loamy soil?

Choices

Choice (4) Response

a.

It is mixture of sandy and clay soil.

b.

It is considered best soil for the growth of plants.

c.

Loamy soil is use to make pots.

d.

All of the above

Question number: 1461

» Biology » Life on Earth and Soil

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MCQ▾

Question

The process of turning plant material into stone is known as:

Choices

Choice (4) Response

a.

Weathering

b.

Decomposition

c.

Petrification

d.

Erosion

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