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Class 10 > Metal and NonMetals

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.

Q 1.

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Which one is a metalloid?

A

Boron

B

Arsenic

C

Polonium

All of the above

Q 2.

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Mercury is also known as

Orich silver

B

Liquid silver

C

Bright metal

D

Heavy metal

Q 3.

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Zinc oxide is

A

Acidic oxide

B

Basic oxide

Amphoteric oxide

D

Neutral oxide

Q 4.

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Metals are

A

Electropositive in nature

B

Good conductor of heat and electricity

C

Malleable and ductile

All of the above

Q 5.

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{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

Q 6.

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CO if soluble in water

A

Turn red litmus blue

B

Turn blue litmus red

C

Both (A) and (B)

None of these

Q 7.

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Metals possess number of electrons in outermost shell

A

One

B

Two

C

Three

All of the above

Q 8.

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Non metal is a

A

Electropositive element

Electronegative elements

C

Always solid

D

Always gas

Q 9.

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Diamond is a

A

Metal

Non-metal

C

Metalloid

D

None of the above

Q 10.

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Metals found in native state

A

Silver

B

Gold

Both

D

None of these

Q 11.

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Brass is an alloy of copper and

A

Silver

B

Iron

C

Aluminium

Zinc

Q 12.

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Which of the following is not an ore

A

Bauxite

B

Malachite

C

Zinc blende

Pig iron

Q 13.

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The most malleable metal is

A

Sodium

B

Silicon

Gold

D

Lead

Q 14.

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Malachite is an ore of

Copper

B

Mercury

C

Iron

D

Aluminium

Q 15.

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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}

Q 16.

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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

Q 17.

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Oleum is:

A

Caster oil

B

Oil of vitriol

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

D

None of these

Q 18.

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Sulphur molecule is

A

Diatomic

B

Tetra-atomic

C

Triatomic

Octa-atomic

Q 19.

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When a non-metal reacts with chlorine, it forms

A

an ionic chloride

a covalent chloride

C

a tetrachloride

D

a dichloride

Q 20.

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

A

Iron

B

Mercury

Zinc

D

Calcium

Q 21.

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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}

Q 22.

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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

Q 23.

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

A

Ag

Mg

C

Cu

D

Cr

Q 24.

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A process employed for the concentration of sulphide ore is :

Froth floatation

B

Roasting

C

Electrolysis

D

Bessemerisation

Q 25.

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Zone refining is used for the :

A

Concentration of an ore

B

Reduction of metal oxide

Purification of metal

D

Purification of an ore.