NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

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Analyzing +4 | -1

In the given first-order sequential reactions

\mathrm{A}\xrightarrow{K_1} \mathrm{B} \xrightarrow{K_2} \mathrm{C} \xrightarrow{K_3} \mathrm{D},

what is the ratio of number of atoms of

\mathrm{A}

to the number of atoms of

\text{B}

after long time interval starting with pure

\text{A}?

\left(K_1=\frac{\ln 2}{1200} \text{ and }K_2=\frac{\ln 2}{30}\right)

View answer and explanation

Correct option: D

Option D (40) is correct because after a long time, all of A will convert to D through B and C, and the ratio of A to B will depend on the rate constants K1 and K2.

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