Solved Chemistry MCQS
Which of the following has greatest tendency to lose electron?
Fr
Be
F
S
Sulphonation of benzoic acid produces mainly
o-Sulphobenzoic acid
p-Sulphobenzoic acid
m-Sulphobenzoic acid
o- and p-Sulphobenzoic acid
The essential component of organic compound is
C
P
O
N
Hess’s law deals with
Rate of reaction
Changes in heat or reaction
Equilibrium constant
Influence of pressure on volume of a gas.
Evaporation of water is
A process accompanied by chemical reaction.
an endothermic change
An exothermic change
A process where no heat changes occur
Which is the most amphoteric?
Al2O3
CaO
MgO
Na2O
Crystal can be classified in to ————– basic crystal habits
14
3
3
7
Causticisation process is used for the preparation of
Caustic soda
Slaked lime
Baryata solution
Caustic potash
Phosphorus pentoxide finds use as
a bleaching agent
A dehydration agent.
An oxidizing agent
A reducing agent
Which of the following statement regarding catalyst is not true?
A catalyst dose not alter the equilibrium in a reversible reaction
A catalyst can initiate a reaction
Catalysts are sometimes very specific in respect of reaction.
A catalyst remains unchanged in composition and quantity at the end of the reaction
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