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Chemistry Question on Chemical bonding and molecular structure

In [Ag(CN)2]−[Ag(CN)_2]^- , the number of π\pi bonds is

A

2

B

3

C

4

D

6

Answer

4

Explanation

Solution

In Ag[(CN)2]2−,CN−Ag \left[( CN )_{2}\right]^{2-}, CN ^{-}has π\pi bonds C≡NC \equiv N so two π\pi-bonds are present in one CNCN so, the number of π\pi bonds are 2×2=42 \times 2=4.