Chemical Kinetics  MCQs

MCQs of Chemical Kinetics

Showing 71 to 80 out of 228 Questions
5 6 7 8 9 10
71.
What is unit of rate of reaction ?
(a) Sec-1
(b) mollit-1sec-1 
(c) mollit-1 sec-1
(d) mollit-1sec-1
Answer:

Option (b)

72.
Powder form is more suitable for reactant ?
(a) Constant surface area is increasing.
(b) Concentration is increasing.
(c) Colloision increasing.
(d) Energy of activation is decreasing.
Answer:

Option (a)

73.
When rate constant is known as specific rate constant ?
(a) Density of reactant is 1.
(b) Volume of reactant is 1 lit.
(c) Weight of reactant is 1 gram.
(d) Concentration of reactant is 1 M.
Answer:

Option (d)

74.
Which type of Kinetic reaction is difficult to measure ?
(a) Very slow
(b) Instant
(c) Slow
(d) Very slow and instant
Answer:

Option (d)

75.
When Ni catalyst adsorption by  NH3 gas at high pressure than what is order of reaction ?
(a) Zero
(b) First
(c) Second
(d) None of these
Answer:

Option (a)

76.
Which option is not correct for zero order reaction ?
(a) Rate = -dRt
(b) -dRt = K R0
(c) Rate = K (1)
(d) dRt = K 
Answer:

Option (d)

77.
When temperature is increases for exothermic reaction which effect is produce ?
(a) Reaction will be slow.
(b) Reaction will be fast.
(c) No effect on reaction.
(d) Chemical reaction is stop.
Answer:

Option (a)

78.
For gaseous state concentration is depend on _____
(a) Pressure
(b) temperature
(c) number of molecule
(d) types of gas
Answer:

Option (a)

79.
If the concentration of the reactants is increased, the rate of reaction
(a) remains unaffected.
(b) increases.
(c) decreases.
(d) may increases or decreases.
Answer:

Option (b)

80.
A first order reaction which is 30 % complete in 30 minutes has a half-life period of
(a) 24.2 min
(b) 58.2 min
(c) 102.2 min
(d) 120.2 min
Answer:

Option (b)

Showing 71 to 80 out of 228 Questions
5 6 7 8 9 10