(A) Aerate the sewage
(B) Remove water content
(C) Remove suspended solids
(D) Disinfect sewage
Tag: Inorganic Chemistry
One of the constituents of tear gas is?
(A) Ether
(B) Ethanol
(C) Ethane
(D) Chloropicrin
Ozone consists of?
(A) Oxygen and Carbon
(B) Hydrogen and Carbon
(C) Oxygen and Nitrogen
(D) Oxygen only
Which one of the following metals does not react with water to produce hydrogen?
(A) Cadmium
(B) Potassium
(C) Lithium
(D) Sodium
Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
(A) Nitrogen
(B) Helium
(C) Hydrogen
(D) Oxygen
An atomic clock is based on transitions in?
(A) Caesium
(B) Sodium
(C) Magnesium
(D) Aluminium
Which of the following substance is highly plastic?
(A) Mica
(B) Granite
(C) Quartz
(D) Clay
Mortar is a mixture of water, sand and?
(A) Quicklime
(B) Slaked lime
(C) Limestone
(D) Gypsum