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The bond order and the magnetic characteristic of CN- are

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Important Questions on Chemical Bonding and Molecular Structure

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Stability of the species  Li 2 , Li 2 - and Li 2 +  increases in the order of
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Which one of the following molecules is expected to exhibit paramagnetic behaviour?
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In which of the following pairs of molecules/ions, both the species are not likely to exist?
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Which one of the following properties is not shown by NO ?
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The increasing order of boiling points of the following compounds is :

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The compound that has the largest HMH bond angle (M = N, O, S, C), is :