Chemistry-Metals and Non-Metals (NSTSE (National Science Talent Search Exam- Unified Council) Class 10): Questions 1 - 8 of 30

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Question number: 1

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

what are A and B in the above reaction?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

What are x and y in the above reaction?

Choices

Choice (4) Response

a.

and

b.

and

c.

and

d.

and

Question number: 3

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

What is the chemical formula of super phosphate of lime?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 4

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Phosphorous pentoxide in mainly used as?

Choices

Choice (4) Response

a.

Drying agent

b.

Reducing agent

c.

Hydrating agent

d.

Oxidizing agent

Question number: 5

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

this reaction is an example of ……………process?

Choices

Choice (4) Response

a.

Self reduction

b.

Calcination

c.

Electrolysis

d.

Auto reduction

Question number: 6

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following metal is used as reducing agent in thermite process?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 7

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which observation is true from the following reactions

Choices

Choice (4) Response

a.

C is reduced

b.

Metal oxide oxidized

c.

Metal oxide reduced

d.

None of the above

Question number: 8

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Select the metal from the following that does not react with sulphuric acid ?

Choices

Choice (4) Response

a.

Zinc

b.

Iron

c.

Magnesium

d.

Gold

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