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A CERTAIN HYDROCARBON ON BEING EXPLODED WITH EXCESS OF OXYGEN AND COOLED . THE VOLUME HAS DECREASED BY 1.5 TIMES THE VOLUME OF HYDROCARBON TAKEN. THE RESIDUAL GASES ON BEING PASSED THROUGH AQUEOUS KOH ,THE DECREASE IN VOLUME IS DOUBLE THE VOLUME OF HYDROCARBON TAKEN . FIND THE NUMBER OF ATOMS OF HYDROGEN IN A MOLECULE OF HYDROCARBON?

A CERTAIN HYDROCARBON ON BEING EXPLODED WITH EXCESS OF OXYGEN AND COOLED . THE VOLUME HAS DECREASED BY 1.5 TIMES THE VOLUME OF HYDROCARBON TAKEN. THE RESIDUAL GASES ON BEING PASSED THROUGH AQUEOUS KOH ,THE DECREASE IN VOLUME IS DOUBLE THE VOLUME OF HYDROCARBON TAKEN . FIND THE NUMBER OF ATOMS OF HYDROGEN IN A MOLECULE OF HYDROCARBON?

Grade:12

1 Answers

askiitian.expert- chandra sekhar
10 Points
13 years ago

Hi Raviteja,

let the compound has x C atoms and y H atoms.

the no. of water molecules are y/2

after cooling water vapour liquifies

y/2=1.5

y=3

after passing through aq KOH volume decreases twice

x=2

therefore no of H atoms in one molecule are 3

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