1.

0.46g of an organic compound was analysed. The increase in mass of `CaCl_(2)` U-tube was 0.54g and potash bulb was 0.88g. The percentage composition of the compound isA. `C=52.17%,H=13.04%,O=34.79%`B. `C=50%,H=50%`C. `C=32.19%,H=18.01%,O=49.8%`D. `C=72%,H=28%`

Answer» Correct Answer - A
Mass of `H_(2)O=0.54g`
Mass of `CO_(2)=0.88g`
% of `C=(12)/(44)xx(0.88)/(0.46)xx100=52.17%`
% of `H=(2)/(18)xx(0.54)/(0.46)xx100=13.04%`
% of `O=100-(52.17+13.04)=34.79`%


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