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0.20 g of hydrocarbon on combustion gave...

0.20 g of hydrocarbon on combustion gave 0.66 g `CO_2`. The percentage of hydrogen in the hydrocarbon is about

A

33

B

45

C

10

D

90

Text Solution

Verified by Experts

The correct Answer is:
C
`0.66 of CO_2 =(0.66 xx 12)/(44)=0.18 g` of carbon
`therefore` Amount of Hydrogen =0.2-0.18=0.02.
`therefore` % of hydrogen `=(0.02)/(0.20)xx 100 =10`
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