Question

The rate law for a reaction, $A+B\to C+D$ is given by the expression $k\left[A\right]$. The rate of reaction will be:

• A. doubled on doubling the concentration of $B$
• B. halved on reducing the concentration of $A$ to half
• C. decreased on increasing the temperature of the reaction
• D. unaffected by any change in concentration of temperature

Answer 1

The correct option is B halved on reducing the concentration of $A$ to half

Rate of reaction- The speed at which a chemical reaction proceeds, It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.

other terms of expression are produced or consumed $\frac{mol}{time}$ and in case of gas we can use pressure term also.

So the correct option is $\left[B\right]$