Chemistry-Acids, Bases and Salts (NSTSE (National Science Talent Search Exam- Unified Council) Class 10): Questions 1 - 8 of 30

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Question number: 1

» Chemistry » Acids, Bases and Salts

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Question

Select the weak acid among the following mineral acids?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2

» Chemistry » Acids, Bases and Salts

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Question

What is the reason behind in adding small amount of baking soda to fresh milk?

Choices

Choice (4) Response

a.

To increase the rate of fermentation

b.

To increase its quality

c.

To make paneer

d.

To decrease the rate of fermentation

Question number: 3

» Chemistry » Acids, Bases and Salts

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Question

Which of the following acid is used in manufacture of glass?

Choices

Choice (4) Response

a.

Ascorbic acid

b.

Tartaric acid

c.

Phosphoric acid

d.

Boric acid

Question number: 4

» Chemistry » Acids, Bases and Salts

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Question

Select the strong base from the following given bases?

Choices

Choice (4) Response

a.

Ammonium hydroxide

b.

Sodium hydroxide

c.

Magnesium hydroxide

d.

Copper hydroxide

Question number: 5

» Chemistry » Acids, Bases and Salts

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Question

We can increase the of water by adding ……………. Compound from the given?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 6

» Chemistry » Acids, Bases and Salts

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Question

Select one substance from the following which is not a salt?

Choices

Choice (4) Response

a.

Lead sulphide

b.

Zinc nitrate

c.

Sodium Chloride

d.

Slaked lime

Question number: 7

» Chemistry » Acids, Bases and Salts

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Question

Which of the following is the weakest acid?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 8

» Chemistry » Acids, Bases and Salts

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Question

………… acid is used in lead storage batteries?

Choices

Choice (4) Response

a.

b.

c.

d.

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