In X-H Y , X and Y both are electronegative elements : -

NEET 2001 Chemistry question

In , X and Y both are electronegative elements : -

(1)Electro density on X will increase and on H will decreaseCorrect
(2)In both electron density will increase
(3)In both electron density will decrease
(4)On X electron density will decrease and on H increases

Answer: (1)

Solution

In a hydrogen bond the highly electronegative atom X already holds the bonding pair of the X-H bond unequally, making H partially positive (). The lone pair of the second

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Question ID VK-088823