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Question

Which of the following order regarding acidity of the following compounds is correct?

A
ROH>HCCH>NH3
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B
ROH<HCCH<NH3
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C
ROH>HCCH<NH3
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D
ROH<HCCH>NH3
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Solution

The correct option is A ROH>HCCH>NH3
Order of acidity is:
Carboxylic acid > Alcohol > Alkyne > Amines > Alkene > Alkane (in general)

As the alcohols contain OH which contains more electronegative oxygen so easily can lose H+

So, alcohol is more acidic and alkynes have sp carbon which is electronegative so more acidic H than NH3

Option A is correct.

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