NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

1 Hard

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Understanding +4 | -1

a

is the initial concentration of the reactant and

(a-

x)

is the concentration at time

t

for the first-order reaction (rate constant

k

). Then which of the following statements are correct.

(I)

x=a\left(1-e^{k_1 t}\right)

(II)

(a-x)=a\left(\frac{1}{2}\right)^y

where

y=\frac{t}{t_{50}}

(III)

k_1=\frac{2.303}{t} \log \left(\frac{a}{a-x}\right)

View answer and explanation

Correct option: D

I, II, III

Option D (I, II, III) is correct because all three statements are correct representations of first-order kinetics.

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