- 1(current)
Q. No.(log 2.5 = 0.3979)
1. \(2.726 \times 10^{-5} \mathrm{~min}^{-1}\)
2. \(2.276 \times 10^{-5} \mathrm{~min}^{-1}\)
3. \(2.216 \times 10^{-5} \mathrm{~min}^{-1}\)
4. \(2.126 \times 10^{-5} \mathrm{~min}^{-1}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor a first-order reaction A \(\rightarrow\) Products, initial concentration of A is 0.1 M, which becomes 0.001 M after 5 minutes. Rate constant for the reaction in min-1 is
| 1. | 0.2303 | 2. | 1.3818 |
| 3. | 0.9212 | 4. | 0.4606 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. 0.16 M
2. 0.32 M
3. 0.08 M
4. 0.04 M
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe rate constant for a first order reaction is . The time required to reduce 2.0 g of the reactant to 0.2 g is:
| 1. | 200 s | 2. | 500 s |
| 3. | 1000 s | 4. | 100 s |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the rate constant for a first order reaction is k, the time (t) required for the completion of 99% of the reaction is given by:
1. t = 2.303/k
2. t = 0.693/k
3. t = 6.909/k
4. t = 4.606/k
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA first-order reaction has a rate constant of 2.303 . The time required for 40 g of this reactant to reduce to 10 g will be
[Given that ]
| 1. | 230.3 s | 2. | 301 s |
| 3. | 2000 s | 4. | 602 s |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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