MHT CET · Chemistry · Chemical Kinetics

For the reaction \(2 \mathrm{~A}+2 \mathrm{~B} \rightarrow 2 \mathrm{C}+\mathrm{D}\)
If \(\mathrm{r}=\mathrm{k}[\mathrm{A}]^2[\mathrm{~B}]^0\), then rate of reaction is

A inversely proportional to square of concentration of A
B independent of concentration of A
C independent of concentration of B
D directly proportional to concentration of B

Verified Solution

Answer & Solution

Correct Answer

(C) independent of concentration of B

Step-by-step Solution

Detailed explanation

\(
\mathrm{r}=\mathrm{k}[\mathrm{A}]^2[\mathrm{~B}]^0
\)
Order wrt B is zero
Rate will be independent of concentration of \(\mathrm{B}\).

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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X	0	1	2	3
\(P(\mathrm{X}=x)\)	\(\frac{1+\mathrm{p}}{5}\)	\(\frac{2-2 \mathrm{p}}{5}\)	\(\frac{2-\mathrm{p}}{5}\)	\(\frac{2 \mathrm{p}}{5}\)

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For the reaction \(2 \mathrm{~A}+2 \mathrm{~B} \rightarrow 2 \mathrm{C}+\mathrm{D}\) If \(\mathrm{r}=\mathrm{k}[\mathrm{A}]^2[\mathrm{~B}]^0\), then rate of reaction is

Step-by-step Solution

For the reaction \(2 \mathrm{~A}+2 \mathrm{~B} \rightarrow 2 \mathrm{C}+\mathrm{D}\)
If \(\mathrm{r}=\mathrm{k}[\mathrm{A}]^2[\mathrm{~B}]^0\), then rate of reaction is