JEE Main Chemistry question

Which one of the following has a coordinate bond?

(A)Correct
(B)
(C)
(D)

Answer: (A)

Solution

In , the ammonium ion is formed when the lone pair on the N atom of is donated into the empty orbital of , creating one N–H bond that is coordinate (dative) in origin (all four N–H bonds become equivalent once formed, but the bond is

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Question ID VK-155862