Chemistry - Mole Concept Question with Solution | TestHub

ChemistryMole ConceptMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

500 ml of a hydrocarbon gas burnt in excess of oxygen yields 2500 ml ofCO2and 3 litres of water vapour, all the volumes being measured at the same temperature and pressure. The formula of hydrocarbon is

Options:

Answer:
B
Solution:

Suppose the formula of hydrocarbon=CxHy
x=volume of CO2 Volume of hydrocarbon=2500500=5
CxHy1 vol.500 ml+x+y4O2=xCO2x vol.500 xml+y2H2Oy2 vol.500y2 ml
500y2=3000
So y = 12
Molecular formula of hydrocarbon=C5H12.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Mole ConceptSubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020

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