- 1(current)
Q. No.Which of the following statements is not correct about the order of a reaction?
| 1. | The order of a reaction can be a fractional number |
| 2. | Order of a reaction is experimentally determined quantity |
| 3. | The order of a reaction is always equal to the sum of the stoichiometric coefficients of reactants in the balanced chemical equation for a reaction |
| 4. | The order of a reaction is the sum of the powers of the molar concentration of the reactants in the rate law expression |
Subtopic: Â Order, Molecularity and Mechanism |
 83%
From NCERT
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The correct statements among the following regarding any unimolecular reaction are-
| a. | Only one reacting species is involved in the rate-determining step |
| b. | The order and the molecularity of the slowest step are equal to one |
| c. | The molecularity of the reaction is one and the order is zero |
| d. | Both molecularity and order of the reaction are one |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Â Order, Molecularity and Mechanism |
 55%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
The correct statements among the following regarding a complex reaction are-
| a. | Order of the overall reaction is the same as the molecularity of the slowest step. |
| b. | Order of the overall reaction is less than the molecularity of the slowest step. |
| c. | Order of the overall reaction is greater than the molecularity of the slowest step. |
| d. | The molecularity of the slowest step is never zero or non-integer. |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Â Order, Molecularity and Mechanism |
 74%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
The graphs that represent a zero-order reaction are:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Â Order, Molecularity and Mechanism |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Match the graph given in Column I with the order of reaction given in Column II.
More than one item in Column I may be linked to the same item in Column II:
| Column I | Column II | ||
| (a) |  |
(a) | 1st order |
| (b) |  |
(b) | Zero order |
| (c) |  |
||
| (d) |  |
||
| (i) | (ii) | (iii) | (iv) | |
| 1. | (a) | (b) | (a) | (b) |
| 2. | (a) | (b) | (b) | (a) |
| 3. | (a) | (a) | (b) | (b) |
| 4. | (b) | (b) | (a) | (a) |
Subtopic: Â Order, Molecularity and Mechanism |
 72%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Match the items in Column I and Column II:
| Column I | Column II |
| A. Mathematical expression for the rate of reaction | 1. Rate constant |
| B. Rate of reaction for zero-order reaction is equal to | 2. Rate law |
| C. Units of rate constant for zero-order reaction is same as that of | 3. Order of slowest step |
| D. Order of a complex reaction is determined by | 4. Rate of reaction |
Codes
| A | B | C | D | |
| 1. | 3 | 4 | 1 | 2 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 2 | 1 | 4 | 3 |
| 4. | 4 | 1 | 3 | 2 |
Subtopic: Â Order, Molecularity and Mechanism |
 84%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Select the correct option based on statements below:
| Assertion (A): | The order of the reaction can be zero or fractional. |
| Reason (R): | We cannot determine order from the balanced chemical equation. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Order, Molecularity and Mechanism |
 58%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Select the correct option based on statements below:
| Assertion (A): | Order and molecularity are the same. |
| Reason (R): | Order is determined experimentally, and molecularity is the sum of the stoichiometric coefficient of the rate-determining the elementary step. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
Subtopic: Â Order, Molecularity and Mechanism |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
- 1(current)
Q. No.
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