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

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

Which of the following is lighter than water?

a) Sodium

b) Magnesium

c) Aluminium

d) Manganese

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.

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

Question : 4 [UPPCS (Mains) 2014]

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

a) Nickel

b) Mercury

c) Lead

d) Tin

Question : 5 [NDA]

Deionised water is produced by

a) Ion-exchange resin process

b) Clark’s process

c) Calgon process

d) Permutit process