Which hydrogen in the following is most acidic?

C_{1} - H

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C_{2} - H

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C_{3} - H

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C_{4} - H

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Solution

The correct option is A $C_{1} - H$
$C_{1} - H$ is most acidic due to the $- I$ effect of $C = O$ group. Due to the electronegativity of $O$ , $e^{-}$ density is attracted towards itself thereby making $C - H$ bond weaker.

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Similar questions

C_{1} - H, C_{2} - H, C_{3} - H

C_{4} - H

Which carbon atom will show minimum electronegativity -

H $^{1} C$ $\equiv$ $^{2} C$ - C $^{3} H$ - C $^{4} H$ - C $^{5} H$

p K_{a} = 4.21

H

H^{a}, H^{b}, H^{c}

H^{d}

(^{21} C_{1} -^{10} C_{1}) + (^{21} C_{2} -^{10} C_{2}) + (^{21} C_{3} -^{10} C_{3}) + (^{21} C_{4} -^{10} C_{4}) + . . . + (^{21} C_{10} -^{10} C_{10})

C_{0} . C_{2} + C_{1} . C_{3} + C_{2} . C_{4} + . . . . . . . . + C_{n - 2} . C_{n}

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