In the PO_4^ 3- ion, the formal charge on each oxygen atom and the P–O bond order, respectively, are:

JEE Main Chemistry question

In the ion, the formal charge on each oxygen atom and the – bond order, respectively, are:

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

Answer: (A)

Solution

The overall charge, delocalised equally over 4 equivalent oxygens by resonance, gives each oxygen a formal charge of . Writing the resonance structure with

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Question ID VK-146377