CxHy+(x+4y)O2→xCO2+2yH2O
Number of equivalents of O2 = Number of equivalents of H2O
Number of equivalents of H2O = 2y=3⇒y=6
Number of equivalents of O2 = x+4y=9.5
⇒x+46=9.5
⇒x+1.5=9.5
⇒x=9.5−1.5=8
⇒x=8,y=6.
So, the formula is C8H6.
JEE Main 2023 — Chemistry Organic Chemistry
When a hydrocarbon A undergoes combustion in the presence of air, it requires 9.5 equivalents of oxygen and produces 3 equivalents of water. What is the molecular formula of A?
Held on 29 Jan 2023 · Verified 6 Jul 2026.
C8H6
C9H9
C6H6
C9H6
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