Question

The rate of reaction between two reactants $A$ and $B$ decreases by a factor of $4$, if the concentrate, of reactant $B$, is doubled. The order of this reaction. with respect to reactant $B$ is:

• A. $-1$
• B. $-2$
• C. $1$
• D. $2$

Answer 1

Answer: (B)

$-2$

The rate of reaction between two reactants $A$ and $B$ decreases by a factor of $4$ if the concentration of reactant $B$ is doubled.

Which means, the Order of this reaction, wrt reactant $B$ is ${}^{\prime }-2^{\prime }$.