Question

The increasing order of the strength of hydrogen bond in the following mentioned linkages is :

(i) O—H---S (ii) S—H---O

(iii) F—H---F (iv) F—H---O

• A. (i) < (ii) < (iv) < (iii)
• B. (ii) < (i) < (iv) < (iii)
• C. (i) < (ii) < (iii) < (iv)
• D. (ii) < (i) < (iii) < (iv)

Answer 1

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Strength of H-bond depends on following factors.

(i) Electronegativity of element covalently bonded to hydrogen atom.

(ii) Size of electronegative element.

(iii) Ease of donation of lone pair of electrons by electronegative element.