(A) Acetic acid
(B) Hydrochloric acid
(C) Sulphuric acid
(D) Nitric acid
Tag: General Knowledge mcqs
Marsh gas formed for decaying organic matter and in coal mines is:
(A) Carbon dioxide
(B) Methane
(C) Ethane
(D) Carbon monoxide
Of the following the content of carbon is minimum in:
(A) Steel
(B) Pig Iron
(C) Wrought Iron
(D) Cast Iron
A catalyst is a substance which:
(A) Stops a chemical reaction
(B) Normal a chemical reaction
(C) Increases the speed of reaction
(D) Decrease the speed of reaction
A gas which is not present in normal samples of air is:
(A) Neon
(B) Chlorine
(C) Carbon dioxide
(D) Helium
Chemically dry ice is:
(A) Ice formed from pure distilled water
(B) Solid carbon dioxide
(C) Ice kept at sub-zero temperature
(D) None of these
The main chemical substance present in the bones and teeth of animal is:
(A) Sodium Chloride
(B) Sugar
(C) Calcium phosphate
(D) Calcium Sulphate
In order to prevent the currusion of iron pipes they are often coated with a layer of zinc. This process is termed:
(A) Electoplating
(B) Anneling
(C) Galvanization
(D) Vulcanization