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Chemistry Question on Chemical Kinetics

Which of the following is an example of a fractional order reaction?

A

NH4NO2→N2+2H2ONH_{4}NO_{2} \to N_{2} + 2H_{2}O

B

NO+O3→NO2+O2NO+O_{3} \to NO_{2}+O_{2}

C

2NO+Br2→2NOBr2NO + Br_{2} \to 2NOBr

D

CH3CHO→CH4+COCH_{3}CHO \to CH_{4} +CO

Answer

CH3CHO→CH4+COCH_{3}CHO \to CH_{4} +CO

Explanation

Solution

CH3CHO→CH4+COCH_{3}CHO \to CH_{4} + CO Rate =k[CH3CHO]3/2= k[CH_{3}CHO]^{3/2}