Coffee keeps you awake because of the presence of what?
Caffeine
Which is known as liquid silver?
Mercury
The metal used to recover copper from a solution of copper sulphate?
Iron
The metallurgical process in which a metal is obtained in a fused state?
Smelting
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure?
Henry's law
The most commonly used bleaching agent?
Chlorine
The octane number of zero is assigned to
N-heptane
The ore which is found in abundance in India?
Monazite
The monomer of polythene?
Ethylene
The most malleable metal?
Gold
The oil used in the froth floatation process?
Pine oil
The material which can be deformed permanently by heat and pressure is called a
Thermoset
The hydronium ion is
H3O+
The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil?
Cineole
The major constituent of air
Nitrogen
The main chemical constituent of clay
Aluminium silicate
The mineral containing both magnesium and calcium
Dolomite
The National Chemical Laboratory is situated in
Pune
The mass number of an atom is equal
The number of nucleons
The metal that is usually extracted from sea water
Mg
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called
Levigation
A liquid without pH value?
Milk
Ag is the symbol of the element
Silver
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