The electronegativity values of C, H, O, N and S are 2.5, 2.1, 3.5, 3.0 and 2.5 respectively. The most polar bond is :

S - H

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O - H

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N - H

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C - H

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Solution

The correct option is C $O - H$
The polarity of the bond is directly proportional to the electronegativity difference of atoms. Electronegativity difference is large in $O - H$ bond.

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Similar questions

F, O, N, C l

H

4.0, 3.5, 3.0, 3.2

2.1

F, O, N, C l

H

4.0, 3.5, 3.0, 3.2

2.1

The electronegativity of $O, F, N, C l$ and $H$ are $3.5, 4.0, 3.0, 3.0$ and $2.1$ respectively. The strongest bond will be

M - O - H

M^{'} - O - H

M = 3.5, M^{'} = 1.72, O = 3.0

H = 2.1

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