# NEET Chemistry Chemical Kinetics Questions Solved

The reaction of iodomethane with sodium ethoxide proceeds as :

A plot of log $\left\{\frac{\left[MeI\right]}{\left[Et{O}^{⊝}\right]}\right\}$on the Y-axis against 't' on the X-axis gives a straight line with a positive slope. What is the order of the reaction ?

(A) Second

(B) First

(C) Third

(D) Fractional

(A) For a second order reaction, $\frac{dx}{dt}=K\left(a-x\right)\left(b-x\right)$

where ‘a’ and ‘b’ are the initial concentrations of the reactants. On integration we get,

line with a positive slope= $\frac{K\left(a-b\right)}{2.303}$

Difficulty Level:

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