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

Question : 11 [UP (Pre) 2002]

Match List-I with List-II:

a) 2 3 4 1

b) 3 2 4 1

c) 1 3 2 4

d) 4 3 1 2

Question : 12

Graphite is a/an –

a) metalloid

b) alloy

c) metal

d) non-metal

Question : 13 [CDS]

Which one of the following is the secondary source of light in a fluorescent lamp?

a) Argon gas

b) Mercury vapour

c) Neon gas

d) Fluorescent coating

Question : 14

Brass is a mixture of

a) copper, nickel and zinc

b) copper and zinc

c) copper and tin

d) aluminium, copper and traces of Mg and Mn

Question : 15

The process of extraction of metal from its ores, is known as

a) purification

b) concentration

c) calcination

d) metallurgy