Chemistry-Metals and Non-Metals (NSTSE (National Science Talent Search Exam- Unified Council) Class 8): Questions 1 - 9 of 45

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Question number: 1

» Chemistry » Metals and Non-Metals

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Question

Which of the following metal is known as noble metal?

Choices

Choice (4) Response

a.

Lithium

b.

Mercury

c.

Gold

d.

Caesium

Question number: 2

» Chemistry » Metals and Non-Metals

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Question

Identity the alloy of aluminium and ( magnesium metals ?

Choices

Choice (4) Response

a.

Alnico

b.

Duralumin

c.

t-metal

d.

Magnalium

Question number: 3

» Chemistry » Metals and Non-Metals

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Question

Decay of metal by water, oxygen and other chemicals is called?

Choices

Choice (4) Response

a.

Amalgamation

b.

Oxidation

c.

Carbonisation

d.

Corrosion

Question number: 4

» Chemistry » Metals and Non-Metals

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Question

How many types of oxides will be formed when phosphorus combined with oxygen?

Choices

Choice (4) Response

a.

Four

b.

One

c.

Two

d.

Three

Question number: 5

» Chemistry » Metals and Non-Metals

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Question

Which of the following non-metal is so hard in nature?

Choices

Choice (4) Response

a.

Diamond

b.

Chlorine

c.

Graphite

d.

Sulphur

Question number: 6

» Chemistry » Metals and Non-Metals

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Question

Name the metal that involved in the process of “Tinning”?

Choices

Choice (4) Response

a.

Copper

b.

Zinc

c.

Tin

d.

Magnesium

Question number: 7

» Chemistry » Metals and Non-Metals

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Question

Select the non-metal which is a good conductor of electricity?

Choices

Choice (4) Response

a.

Silicon

b.

Phosphorous

c.

Graphite

d.

Sulphur

Question number: 8

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following ionic species are formed by metals?

Choices

Choice (4) Response

a.

Anions

b.

Cations & Anions

c.

Cations

d.

Do not form ions

Question number: 9

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following leads to the stability of metals?

Choices

Choice (4) Response

a.

Loss or gain of electrons

b.

Loss of electrons

c.

Gain of electrons

d.

None of the above

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