NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1406 - 1413 of 1484

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Question number: 1406

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

Which of the following substance reduces a compound?

Choices

Choice (4) Response

a.

A dehydrating agent

b.

A hydrating agent

c.

A reducing agent

d.

An oxidizing agent

Question number: 1407

» Chemistry » Acids, Bases and Salts

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Question

Which of the following solution is non-conductor of electricity?

Choices

Choice (4) Response

a.

Alcohol

b.

Glucose

c.

Sulphuric acid

d.

Both a. and b. are correct

Question number: 1408

» Chemistry » Chemical Reactions and Equations

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Question

Which of the following substances is known a n oxidizing agent?

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 1409

» Chemistry » Acids, Bases and Salts

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MCQ▾

Question

…………. . is a strong acid?

Choices

Choice (4) Response

a.

Lactic acid

b.

Ascorbic acid

c.

Sulphuric acid

d.

Formic acid

Question number: 1410

» Chemistry » Chemical Reactions and Equations

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MCQ▾

Question

in the above reaction, which species is reduced and how many electrons transferred?

Choices

Choice (4) Response

a.

Hydrogen,

b.

Hydrogen and oxygen

c.

Chromium,

d.

Oxygen,

Question number: 1411

» Chemistry » Metals and Non-Metals

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Question

what are A and B in the above reaction?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1412

» Chemistry » Carbon and Its Compounds

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MCQ▾

Question

Which of the following enzyme can convert glucose to ethyl alcohol?

Choices

Choice (4) Response

a.

Zymase

b.

Invertase

c.

Diastase

d.

Maltase

Question number: 1413

» Chemistry » Carbon and Its Compounds

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MCQ▾

Question

The total number of isomers of butane are?

Choices

Choice (4) Response

a.

7

b.

5

c.

4

d.

2

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