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Question

Consider the following molecules/ions:
SO2, CO2, N2O, OF2, ICl2, I3, NO2, NO2, NO2+, BF2, BeCl2, N3, HCN.
Among the above, the number of molecules/ions which are linear is:

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Solution

In total, eight molecules/ions are linear.
CO2,N2O,NO+2,BeCl2,N3 and HCN: The central atom in these six molecules/ions are 'sp' hybridized. Hence, they are all linear.
ICl2 and I3: These two have iodine as the central atom in sp3d hybridization and 3 equatorial lone pairs. Hence, the molecules/ions are linear.
SO2,NO2,NO2 and BF2: These are all sp2 hybridized. The molecules are non-linear.
OF2 has sp3 hybridized O atom. The molecule is non-linear like water.

90260_43834_ans_f82872a9b6b545d8ac9db0f254e87676.png

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