alloys, carbon & its various forms, hydrogen & compounds, sulphur, nitrogen, halogen & inert gases - Category wise Question and Answer Practice Test with Solutions

Question : 6 [PSC (Pre) 2019]

Galvanized iron is coated with

a) Zinc

b) Silver

c) Aluminium

d) Galena

Question : 7 [IAS (Pre) 1997]

The most reactive among the Halogens is

a) Chlorine

b) Bromine

c) Fluorine

d) Iodine

Question : 8 [RAS/RTS (Pre) 2007]

Which gas is mixed with Oxygen for respiration by divers in deep sea?

a) Nitrogen

b) Xenon

c) Helium

d) Ammonia

Question : 9 [PCS (Pre) 2002]

Tear gas is

a) Chlorine

b) Hydrogen Carbide

c) Ammonia

d) Hydrogen Sulphide

Question : 10 [PCS (Pre) 2005]

The pH value for water is

a) 8.7 or more

b) 5 or less than 5

c) Nearly zero

d) Nearly 7