CUET · CHEMISTRY · PYQ PAPER 2025
The units of rate constant of four reactions are given below. Arrange them in the increasing order of reaction.
(A)\(s^{-1}\)
(B) \(mol L ^{-1} s^{-1}\)
(C) \(\mathrm{mol}^{1 / 2} \mathrm{~L}^{-1 / 2} \mathrm{~s}^{-1}\)
(D) \(\mathrm{L}^{1 / 2} \mathrm{~mol}^{-1 / 2} \mathrm{~s}^{-1}\)
Choose the correct answer from the options given below:
- A (A), (B), (C), (D)
- B (D), (A), (C), (B)
- C (B), (A), (D), (C)
- D (B), (C), (A), (D)
Answer & Solution
Correct Answer
(D) (B), (C), (A), (D)
Step-by-step Solution
Detailed explanation
Order of reaction (n) from units: \( (mol \ L^{-1})^{1-n} s^{-1} \). (A) \( s^{-1} \implies 1-n=0 \implies n=1 \) (B) \( mol \ L^{-1} s^{-1} \implies 1-n=1 \implies n=0 \) (C) \( mol^{1/2} \ L^{-1/2} \ s^{-1} = (mol \ L^{-1})^{1/2} \ s^{-1} \implies 1-n=1/2 \implies n=1/2 \) (D)…
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