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Class 10

Explore popular questions from Metal and NonMetals for Class 10. This collection covers Metal and NonMetals previous year Class 10 questions hand picked by experienced teachers.

Metal and NonMetals

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Q 1. Which one is a metalloid?

A

Boron

B

Arsenic

C

Polonium

All of the above

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Q 2. Mercury is also known as

Orich silver

B

Liquid silver

C

Bright metal

D

Heavy metal

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Q 3. Zinc oxide is

A

Acidic oxide

B

Basic oxide

Amphoteric oxide

D

Neutral oxide

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Q 4. Metals are

A

Electropositive in nature

B

Good conductor of heat and electricity

C

Malleable and ductile

All of the above

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Q 5. {tex}\mathrm{SO_2}{/tex} if soluble in water

A

Turn red litmus blue

Turn blue litmus red

C

Both (A) and (B)

D

None of these

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Q 6. CO if soluble in water

A

Turn red litmus blue

B

Turn blue litmus red

C

Both (A) and (B)

None of these

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Q 7. Metals possess number of electrons in outermost shell

A

One

B

Two

C

Three

All of the above

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Q 8. Non metal is a

A

Electropositive element

Electronegative elements

C

Always solid

D

Always gas

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Q 9. Diamond is a

A

Metal

Non-metal

C

Metalloid

D

None of the above

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Q 10. Metals found in native state

A

Silver

B

Gold

Both

D

None of these

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Q 11. Brass is an alloy of copper and

A

Silver

B

Iron

C

Aluminium

Zinc

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Q 12. Which of the following is not an ore

A

Bauxite

B

Malachite

C

Zinc blende

Pig iron

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Q 13. The most malleable metal is

A

Sodium

B

Silicon

Gold

D

Lead

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Q 14. Malachite is an ore of

Copper

B

Mercury

C

Iron

D

Aluminium

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Q 15. The second most abundant metal in the earth crust is

A

{tex}\mathrm{Ca}{/tex}

{tex}\mathrm{Fe}{/tex}

C

{tex}\mathrm{O_2}{/tex}

D

{tex}\mathrm{Cu}{/tex}

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Q 16. If an isotope has two neutrons in its atom, the atomic number and mass number will respectively be

A

2 and 1

B

3 and 1

C

1 and 1

1 and 3

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Q 17. Oleum is:

A

Caster oil

B

Oil of vitriol

Fuming {tex}\mathrm{H_2SO_4}{/tex}

D

None of these

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Q 18. Sulphur molecule is

A

Diatomic

B

Tetra-atomic

C

Triatomic

Octa-atomic

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Q 19. When a non-metal reacts with chlorine, it forms

A

an ionic chloride

a covalent chloride

C

a tetrachloride

D

a dichloride

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Q 20. Which of the following metals will displace hydrogen from steam, dilute acids and alkalies?

A

Iron

B

Mercury

Zinc

D

Calcium

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Q 21. The final acid obtained during the manufacture of {tex}\mathrm{H_2SO_4}{/tex} by contact process is:

A

{tex}\mathrm{H_2SO_4}{/tex} (conc.)

B

{tex}\mathrm{H_2SO_4}{/tex} (dil.)

C

{tex}\mathrm{H_2SO_4}{/tex} (aq)

{tex}\mathrm{H_2S_2O_7}{/tex}

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Q 22. A mineral is known as ore if metal

A

cannot be produced from it

B

can be produced from it

can be extracted from it profitably

D

is very costly

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Q 23. Out of the following , which cannot be obtained by electrolysis of aqueous solution of the salt?

A

Ag

Mg

C

Cu

D

Cr

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Q 24. A process employed for the concentration of sulphide ore is :

Froth floatation

B

Roasting

C

Electrolysis

D

Bessemerisation

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Q 25. Zone refining is used for the :

A

Concentration of an ore

B

Reduction of metal oxide

Purification of metal

D

Purification of an ore.