Ncert Exercises & Solutions

Match the items in Column I and Column II:

	Column I		Column II
A.	Mathematical expression for the rate of reaction	1.	Rate constant
B.	Rate of reaction for zero-order reaction is equal to	2.	Rate law
C.	Units of rate constant for zero-order reaction is same as that of	3.	Order of slowest step
D.	Order of a complex reaction is determined by	4.	Rate of reaction

Codes:

HINT: For zero-order reaction unit of rate constant is

mol

L^{- 1} s^{- 1}

Explanation:

1. Mathematical expression for the rate of reaction is known as rate law.

2. Rate of reaction for the zero-order reaction is equal to rate constant.

$\begin{array}{l} r = k [A]^{0} \\ ∴ r = k \end{array}$

3. Unit of the rate of reaction is the same as that of the rate of reaction

4. Order of complex reactions is determined by the rate of a reaction, which is the slowest.