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The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol–1. If resonance energy of benzene is –150.4 kJ mol–1, its enthalpy of hydrogenation would be [2006]
  • a)
    – 208.1 kg mol–1
  • b)
    – 269.9 kg mol–1
  • c)
    – 358.5 kg mol–1
  • d)
    – 508.9 kg mol–1
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol&n...
Cyclohexene after hydrogenation would be converted to purely saturated cyclohexane.
As cyclohexene has one pi bond its enthalpy of hydrogenation is -119.5 kJ mol-1.
In benzene there are 3 pi bonds hence the enthalpy of hydrogenation = -150.4 kJ –  3 * -119.5 kJ.
– 208.1 kg mol–1
 
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Most Upvoted Answer
The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol&n...
The enthalpy of hydrogenation of cyclohexene is -120 kJ/mol.
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The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol–1. If resonance energy of benzene is –150.4 kJ mol–1, its enthalpy of hydrogenation would be [2006]a)– 208.1 kg mol–1b)– 269.9 kg mol–1c)– 358.5 kg mol–1d)– 508.9 kg mol–1Correct answer is option 'A'. Can you explain this answer?
Question Description
The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol–1. If resonance energy of benzene is –150.4 kJ mol–1, its enthalpy of hydrogenation would be [2006]a)– 208.1 kg mol–1b)– 269.9 kg mol–1c)– 358.5 kg mol–1d)– 508.9 kg mol–1Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol–1. If resonance energy of benzene is –150.4 kJ mol–1, its enthalpy of hydrogenation would be [2006]a)– 208.1 kg mol–1b)– 269.9 kg mol–1c)– 358.5 kg mol–1d)– 508.9 kg mol–1Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol–1. If resonance energy of benzene is –150.4 kJ mol–1, its enthalpy of hydrogenation would be [2006]a)– 208.1 kg mol–1b)– 269.9 kg mol–1c)– 358.5 kg mol–1d)– 508.9 kg mol–1Correct answer is option 'A'. Can you explain this answer?.
Solutions for The enthalpy of hydrogenation of cyclohexane is – 119.5 kJ mol–1. If resonance energy of benzene is –150.4 kJ mol–1, its enthalpy of hydrogenation would be [2006]a)– 208.1 kg mol–1b)– 269.9 kg mol–1c)– 358.5 kg mol–1d)– 508.9 kg mol–1Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
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