Question

In the reaction of $aA+bB+cC⟶$ 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

• A. 1
• B. 2.5
• C. 3
• D. 3.5

Answer 1

Answer: (C)

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