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Q. In the reaction of $aA+b B+c C \longrightarrow $ Products,
i. If concentration of $A$ is doubled, keeping conc. of $B$ and $C$ constant, the rate of reaction becomes double
ii. If concentration of $B$ is halved keeping conc. of $A$ and $C$ constant, the rate of reaction remains unaffected.
iii. If concentration of $C$ is made 1.5 times, the rate of reaction becomes 2.25 times.
The order of reaction is

Chemical Kinetics

Solution:

Rate $\propto[A][B]^{0}[C]^{2}$ Hence, order $=3$