What is the number of mole(s) of H₂(g) required to saturate one mole benzene ?
1
2
3
4
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC NDA-1 – 2016
– Saturation of an unsaturated hydrocarbon involves adding hydrogen (H₂) to break the double or triple bonds, converting them into single bonds.
– The reaction for the complete hydrogenation of benzene to cyclohexane (C₆H₁₂) is:
C₆H₆ + 3 H₂ → C₆H₁₂
– Each mole of H₂ reacts with one mole of a double bond. Since benzene has three double bonds, 3 moles of H₂ are required to saturate one mole of benzene.