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

Question : 26 [UPPCS (Pre) 2010]

In which of the following industries is mica used as a raw material?

a) Toys

b) Glass and pottery

c) Iron and steel

d) Electrical

Question : 27

Which of the following is not a atomic characteristics of metal –

a) ductile

b) malleable

c) electropositive nature

d) none of these

Question : 28

Alumina is chief ore of which of the following metal?

a) Ca

b) Na

c) K

d) Al

Question : 29

Consider the following elements:

1. Copper
2. Gold
3. Platinum
4. Silver

a) (i), (ii) and (iv)

b) (i) and (ii)

c) (ii) and (iii)

d) (iii) and (iv)

Question : 30

When iron is left exposed to open air, it gets rusted. Which constituent(s) of air is /are responsible for rusting iron?

1. Oxygen gas present in the air
2. Moisture present in the air
3. Carbon dioxide gas present in the air

a) (i) and (ii)

b) (i) only

c) (ii) only

d) (ii) and (iii)