Question

# The oxidation of a certain metal is found to obay the equation A2=αt+β, where 'A' is the thickness of the oxide film at time 't', α and β are constants. The order of this reaction is

A
\N
B
1
C
1
D
2

Solution

## The correct option is A −1A2=αt+β Differentiating this equation. we get  −2AdA=αdt−dAdt=α2A=α2A=α2[A]−1 Hence, order of the reaction =−1

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