Materials: Metals and Non-Metals (CBSE Class-8 Science): Questions 16 - 20 of 20

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Question number: 16

» Materials: Metals and Non-Metals » Metals & Non- Metals » Uses of Metals and Nonmetals

MCQ▾

Question

Metal present in chlorophyll is:

Choices

Choice (4) Response

a.

Oxygen

b.

Magnesium

c.

Hydrogen

d.

Iron

Question number: 17

» Materials: Metals and Non-Metals » Chemical Properties of Metals & Non-Metals » Reactions With Acids

MCQ▾

Question

Sulphur reacts with:

Choices

Choice (4) Response

a.

Dilute hydrochloric acid

b.

Hot Concentrated Nitric acid

c.

Concentrated sulphuric acid

d.

Concentrated hydrochloric acid

Question number: 18

» Materials: Metals and Non-Metals » Metals & Non- Metals » Uses of Metals and Nonmetals

MCQ▾

Question

Electric wires and cables are made up of:

Choices

Choice (4) Response

a.

Zinc

b.

Copper

c.

Aluminium

d.

Magnesium

Question number: 19

» Materials: Metals and Non-Metals » Metals & Non- Metals » Uses of Metals and Nonmetals

MCQ▾

Question

Oxygen is used

Choices

Choice (4) Response

a.

As fuel

b.

In Crackers

c.

In making antiseptic

d.

For breathing purpose

Question number: 20

» Materials: Metals and Non-Metals » Physical Properties of Metals & Non-Metals » Malleability

MCQ▾

Question

Property of metals by which they can be beaten into thin sheets is called

Choices

Choice (4) Response

a.

Hard

b.

Malleability

c.

Ductility

d.

Lustrous

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