Question

For the following graphs,

Choose from the options given below, the correct one regarding order of reaction is :

• A. (b) zero order (c) and (e) First order
• B. (a) and (b) Zero order (e) First order
• C. (b) and (d) Zero order (e) First order
• D. (a) and (b) Zero order (c) and (e) First order

Answer 1

Answer: (A)

For zero order reaction's rate $=K[\text { Reactant }]^{0}$
$\Rightarrow r=k$

$t _{112}=\frac{[ A ]_{0}}{2 K }$ for zero order

For first order reaction $\rightarrow$
$r = K$ [Concentration]

Reactant concentration after time $t \rightarrow C_{t}=C_{0} e^{-k t}$