How many and bonds are there in an ion?

CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding

Problem

How many σ\sigma and π\pi bonds are there in an NO2−\mathrm{NO_2^-} ion? (1) 2 σ2\,\sigma bonds, 0 π0\,\pi bonds (2) 1 σ1\,\sigma bond, 1 π1\,\pi bond (3) 2 σ2\,\sigma bonds, 1 π1\,\pi bond (4) 2 σ2\,\sigma bonds, 2 π2\,\pi bonds

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