Which is known as king of chemicals?
HCl
HNO3
H2SO4
CH3COOH
What is the chemical formula of oleum?
HCL
H2S2O7
H2SO3
Ammonia gas turns phenolphthalein solution to
Black
Pink
Yellow
Blue
Which is produced by heating a mixture of Ca(OH)2 and NH4Cl?
Ammonia
Which is known as 'Royal Water'?
Aquaforbis
Aquaregia
Chlorine rich water
Oxygen rich water
Which substance increases or decreases the rate of a reversible reaction?
Catalyst
Reactant
Product
accelerator
Which is manufactured by contact process?
H3PO4
Compound used for sulphate test is
BaSO4
Na2SO4
BaCl2
NaOH
Which of the following is a drying agent?
FeO
CuO
CaO
MgO
Reaction of sulphuric acid with water is ___________ process.
Reversible
Irreversible
Exothermic
Endothermic
