NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

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Analyzing +4 | -1

For the reaction

{aA}+{bB} \rightarrow {P}, r=K[{A}]^a \cdot [{B}]^b,

if the concentration of

{A}

is doubled, then the rate is doubled. If the concentration of

{B}

is doubled, then the rate becomes four times. The correct relation is

View answer and explanation

Correct option: C

2 \cdot \frac{{d}[{A}]}{{d} t}=\frac{{d}[{B}]}{{d} t}

The correct answer is C (

2 \cdot \frac{{d}[{A}]}{{d} t}=\frac{{d}[{B}]}{{d} t}

) because the rate law indicates that A is first order and B is second order, meaning for every two moles of A consumed, one mole of B is consumed.

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