Some Basic Principles Of Organic Chemistry Question 49

Question: Which is most acidic of the following [J & K 2005]

Options:

A) Methane

B) Acetylene

C) 1-butene

D) Neo-pentane

Show Answer

Answer:

Correct Answer: B

Solution:

The s -character of C−H bond of acetylene is higher in comparison to C−H bond of ethene and ethane.

The electrons of the C−H bond in acetylene are strongly held by carbon nuclei.

This facilitates the removal of hydrogen as proton.

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