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

Question : 16

What is anode mud –

a) impurities collected at anode in electrolysis during purification of metals

b) fan of anode

c) metal of anode

d) all of these

Question : 17 [RAS/RTS (Pre) 2008]

Pearl is mainly constituted of

a) Calcium Sulphate

b) Calcium Carbonate

c) Calcium Oxalate

d) Calcium Oxide

Question : 18 [BPSC (Pre) 1992]

There is no reaction when steam passes over

a) Copper

b) Carbon

c) Aluminium

d) Iron

Question : 19 [UPPCS (Pre) 2005]

Which one of the following liquids is very good conductor of heat?

a) Water

b) Ether

c) Mercury

d) Benzene

Question : 20

Which ore contains both iron and copper?

a) Chalcopyrite

b) Cuprite

c) Chalcocite

d) Malachite