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A substance undergoes first order decomposition. It follows two first order reaction as follow:

Answer»

`75%` B and `25%` C
`80%` B and `20%` C
`90%` B and `10%` C
`76.83%` B and `23.17%` C.

Solution :The percentage distribution of B and C are in the RATIOS of their rate constants.
`% of B= k_(1)/(k_(1) XX k_(2)) xx 100`
`=76.83%`
`% of C=100 - 76.83 = 23.17%`


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