metals, non metals, minerals, ores, properties, uses - Category wise Question and Answer Practice Test with Solutions

metals, non metals, minerals, ores, properties, uses PRACTICE TEST [4 - EXERCISES]

set 1

set 2

set 3

set 4

Question : 1 [UDA/LDA (Pre) 2003]

Which of the following is lighter than water?

a) Sodium

b) Magnesium

c) Aluminium

d) Manganese

Answer: (a)

Question : 2

Which of the following statements regarding non-metals is false?

a) The black material inside a pencil is metal lead.

b) 11 non-metals are in gaseous state.

c) Gas carbon is a good conductor of heat and electricity.

d) All non-metals are non-sonorous in nature.

Answer: (a)

The black material inside a pencil is not metal lead. Actually it is graphite, a non-metal.

Question : 3 [RAS/RTS (Pre) 1999]

The softest mineral, Talc (Soapstone) is mainly

a) Sodium Silicate

b) Sodium Phosphate

c) Manganese Silicate

d) Magnesium Silicate

Answer: (d)

Question : 4 [UPPCS (Mains) 2014]

Which one of the following metals is liquid at ordinary temperature?

a) Nickel

b) Mercury

c) Lead

d) Tin

Answer: (b)

Question : 5 [NDA]

Deionised water is produced by

a) Ion-exchange resin process

b) Clark’s process

c) Calgon process

d) Permutit process

Answer: (a)

IMPORTANT general science mcq EXERCISES
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