Chemical Kinetics-Differential and Integral Forms of Zero and First Order Reactions [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 1 - 6 of 26
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Question 1
Appeared in Year: 2018
Question MCQ▾
In an order reaction amount of the substance left after n half-lives and average life of a order reaction respectively are
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. | Both a. and b. are correct |
Question 2
Question MCQ▾
A substance reacts with initial concentration of a mol/dm3 according to zero order kinetics. The time it takes for the completion of the reaction is (k = rate constant) ?
Choices
Choice (4) | Response | |
---|---|---|
a. | 2k/a | |
b. | a/k | |
c. | a/2k | |
d. | k/a |
Question 3
Question MCQ▾
90% of the first order reaction is completed in 70 minutes. The velocity constant of the reaction is?
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.329 | |
b. | 0.0329 | |
c. | 3.29 | |
d. | 0.0293 |
Question 4
Question MCQ▾
Which of the following equation is true regarding zero order reaction?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | Either A or B | |
c. | ||
d. |
Question 5
Question MCQ▾
The half-life of first order reaction having rate constant k = 1.7 × 10-5 sec-1 is?
Choices
Choice (4) | Response | |
---|---|---|
a. | 11.3 hrs | |
b. | 9.7 hrs | |
c. | 12.1 hrs | |
d. | 1.8 hrs |
Question 6
Question MCQ▾
The first order reaction has half life of 14.5 hrs. What percentage of the reactant will remain after 24 hrs?
Choices
Choice (4) | Response | |
---|---|---|
a. | 18.3% | |
b. | 68.2% | |
c. | 45.5% | |
d. | 31.8% |