JEE CHEMISTRY MCQ: CHEMICAL KINETICS

1 Medium

1 of 1

Analyzing +4 | -1

A reaction is 50% complete in 2 hours and 75% complete in 4 hours. The order of reaction is

View answer and explanation

Correct option: A

Option A (1) is correct because the reaction being 50% complete in 2 hours and 75% complete in 4 hours indicates a first-order reaction, where

t_{75\%} = 2 \times t_{50\%}

More Questions from CHEMICAL KINETICS

Practice All Chapter MCQs →

\mathrm{A}_2+\mathrm{B}_2 \rightarrow 2 \mathrm{AB}

\begin{aligned} & {{\text{A}}_2}\mathop \rightleftharpoons \limits_{{{\text{k}}_{ - 1}}}^{{{\text{k}}_1}} {\text{A}} + {\text{A (fast) }} \\ & \mathrm{A}+\mathrm{B}_2 \xrightarrow{\mathrm{k}_2} \mathrm{AB}+\mathrm{B} \text { (slow) } \\ & \mathrm{A}+\mathrm{B} \rightarrow \mathrm{AB} \text { (fast) } \end{aligned}

k

(Initial\mathrm{ }conc.\mathrm{ } = a)

C_0 \sqrt{T}

C_0

T

100 \mathrm{~kJ/mol}.

75 \%

\log _{10} \frac{K_2}{K_1}

27^{\circ} \mathrm{C}

2.303 \times 8.314=19.147