Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-numerical-Medium-Class 11
Given the catalytic hydrogenation reactions of alkenes and alkynes with Pt/Pd/Ni, how many moles of hydrogen gas are required to fully hydrogenate one mole of propyne to propane?
A
1 mole
B
2 moles
C
3 moles
D
0.5 mole
Correct Answer
Option B
Detailed Explanation
According to the NCERT context, propyne (CH3-C≡C-H) requires two moles of hydrogen gas (H2) to add across the triple bond and convert into propane (CH3-CH2-CH3).
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