which of the following is strongest bond explain with reason

S-H, O-H, I-H , F-H

Dear Student,

H-F bond is the strongest bond.This is because F is the most electronegative element and H is highly electropositive. Also, they both have comparable size, therefore strong ionic bond exists between them. H-O is less stronger than H-F since O is less electronegative than F. Also I and S have larger size and less electronegativity, therefore H-Sand H-I bond is also weaker than H-F. 

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I-H
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F-H is the strongest bond as F is more electronegative and H is electro+ve.so F pulls electron and H becomes 'del+ve' and F becomes 'del-ve'
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