NEET Chemistry Chemical Kinetics Questions Solved

NEET - 2015

The rate constant of the reaction A $\to$ B is 0.6 x 10-3 mole per sccond. If the concentration of A is 5 M then concentration of B after 20 min is

(a) 1.08 M

(b) 3.60 M

(c) 0.36 M

(d) 0.72 M

Key Concept: For a zero order reaction unit of rate constant is mole per second. Hence, we can easily calculate concentration of B after 20 min by the following formula,

x = Kt

X = Kt = 0.6 x 10-3 x 20 x 60= 0.72M

Difficulty Level:

• 15%
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• 28%