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  • Which one of the following formula is used for the calculation of presence of percentage Hydrogen in an organic compound?Option: 1 <img alt="\mathrm{

Which one of the following formula is used for the calculation of presence of percentage Hydrogen in an organic compound?

Option: 1

\mathrm{\frac{12 \times \text {mass of } CO _{2} \times 100}{44 \times \text { mass of O.C }}}


Option: 2

\mathrm{\frac{2 \times \text {mass of } H _{2} O \times 100}{18 \times \text {mass of } O . C}}


Option: 3

\mathrm{\frac{1.4 \times N \times V}{\text { mass of } O . C}}


Option: 4

\mathrm{\frac{32 \times \text {mass of } BaSO _{4} \times 100}{233 \times \text {mass of } O . C}}


Answers (1)

best_answer

As we have learnt,

Detection of Hydrogen 

The hydrogen atom present in an organic compound is detected by heating the organic compound with \mathrm{CuO} wherein all the hydrogen present in the compound is converted into \mathrm{H_2O}

In Leibig's method, the percentage of hydrogen in an organic compound can be computed by the formula 

\mathrm{\% H= \frac{2\times mass\: \: of\: \: H_2O\times 100}{18\times mass\: \: of\: \: O.C}}

Hence, the correct answer is Option (2)

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Riya

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