# Multiple Choice Questions On Chemical Kinetics With Answers PDF (Rate of a Chemical Reaction)

Are you looking for multiple choice questions and answers on chemical kinetics for medical/engineering entrance exams such as NEET, AIIMS and JEE? Dear reader, you have come to the right place. This Multiple Choice Questions On Chemical Kinetics With Answers PDF compiles a set of handpicked questions from various sources. These questions have been taken from standard textbooks in a simplified format so even students having no back ground in chemistry can attempt them. The answers to each question has been provided also.

## Multiple Choice Questions On Chemical Kinetics With Answers PDF (Rate of a Chemical Reaction)

#### 1. The reaction NO2 + CO → NO + CO2 takes place in two steps. Find the rate law.

2NO2 → NO + NO3 (k1) – slow
NO3 + CO → CO2 + NO2 (k2) – fast

a) R = k1 [NO2]3

b) R = k2 [NO3] [CO]

c) R = k1 [NO2]

d) R = k1 [NO2]2

a) 0.077 s-1

b) 0.085 s-1

c) 0.015 s-1

d) 0.026 s-1

#### 3. What is the rate law for acid hydrolysis of an ester such as CH3COOC2H5 in aqueous solution?

a) k [CH3COOC2H5]

b) k [CH3COOC2H5] [H2O]

c) k [CH3COOC2H5]2

d) k

a) 26.667 M

b) 17.143 M

c) 26.183 M

d) 17.667 M

a) r2= 4.5r1

b) r2= 5r1

c) r2= 2r1

d) r2= 4r1

#### 6. What is the rate law for the reaction C2H4 + I2 → C2H4I2?

a) R= [C2H4] [I2]3/2

b) R= [C2H4] [I2]3

c) R= [C2H4] [I2]2

d) R= [C2H4] [I2]

a) True

b) False

a) s-1

b) mol L-1s-1

c) mol-1 L s-1

d) mol-2 L2 s-1

a) Zero order

b) First order

c) Second order

d) Third order

#### 10. For a reaction A +B → C, the experimental rate law is found to be R=k[A]1[B]1/2. Find the rate of the reaction when [A] = 0.5 M, [B] = 0.1 M and k=0.03.

a) 4.74 × 10-2 (L/mol)1/2 s-1

b) 5.38 × 10-2 (L/mol)1/2 s-1

c) 5.748 × 10-2 (L/mol)1/2 s-1

d) 4.86 × 10-2 (L/mol)1/2 s-1

Answer: 4.74 × 10-2 (L/mol)1/2 s-1