Rank the hydrogen atoms (H a ,H b ,H c ) in the following molecule acc. to thier acidic strength. Explain!!!

Rank the hydrogen atoms (Ha,Hb,Hc) in the following molecule acc. to thier acidic strength.Explain!!!

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Grade:12th pass

1 Answers

Jayant Kishore
144 Points
6 years ago
The correct order will be c>b>a .
In these type of questions we generally check the stability of conjugate base. Therefore , in case of hydrogen c , the negative charge after donation of acidic H will be resonance stabilised . However , in case of b Hydrogen the resonance will be less. And in the case of a Hydrogen no resonance effect can stabilise the negative charge .
Hence , the above order.  
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