The rate of a reaction usually increases with increase in the concentration of reactants because the
distance between particles of the reactants increases
frequency of collision of particles is lower
particles of the reactants gain energy and move faster
reactants from a complex which decomposes rapidly
reactants occupy a higher energy level
Correct answer is D
No explanation has been provided for this answer.
The reaction of an alkanol with alkanioc acid is known as
dehydration
esterification
halogenation
hydrogenation
saponification
Correct answer is B
No explanation has been provided for this answer.
The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is
CH2
CH3
C2H2
C2H4
C2H6
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements is NOT correct of group VII elements? They
are diatomic
are good oxidizing agents
are highly electronegative
have high electron affinity
have relatively low ionization potentials
Correct answer is E
No explanation has been provided for this answer.
Which of the following is NOT a fraction of petroleum?
Bitumen
Coal
Diesel
Kerosene
Petrol
Correct answer is B
No explanation has been provided for this answer.