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Class 8

Explore popular questions from Materials: Metals and NonMetals for Class 8. This collection covers Materials: Metals and NonMetals previous year Class 8 questions hand picked by experienced teachers.

Materials: Metals and NonMetals

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Q 1. Which of the following properties is generally not shown by metals?

A

Ductility

B

Sonorous

Dullness

D

Electrical conduction

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Q 2. Which of the following non-metal is a liquid?

A

Sulphur

B

Phosphorus

C

Carbon

Bromine

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Q 3. The metal which is stored in kerosene:

A

Phosphorus

B

Magnesium

Sodium

D

Zinc

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Q 4. All metals are solids except:

A

Sodium

B

Calcium

Mercury

D

Hydrogen

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Q 5. Metal oxides are of nature:

A

Acidic

Basic

C

Neutral

D

All of these

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Q 6. Which one of the following metal is the most ductile?

A

Aluminium

B

Copper

C

Silver

Gold

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Q 7. Metals are

A

soft and brittle

hard and solid

C

liquid

D

generally liquid

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Q 8. Materials having qualities of both metals and non-metals are

A

alloys

metalloids

C

noble metals

D

none of these

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Q 9. Which of the following element is not found in free state in the nature?

A

Silver

B

Copper

Sodium

D

Gold

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Q 10. Epsom salt is

A

{tex}CuSO_4{/tex}

{tex}MgSO_4·7H_2O{/tex}

C

{tex}NH_2CONH_2{/tex}

D

{tex}(NH_4)_2SO4{/tex}

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Q 11. An ore gives off {tex}SO_2{/tex} when heated with {tex}O_2{/tex} This ore is concentrated by -

A

gravity separation method

B

magnetic separation method

froth flotation method

D

chemical method