The p-Block Elements
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Assign reason for the following:
Bismuth is a strong oxidizing agent in a pentavalent state.

The stability of + 5 oxidation state decreases down the group due two inert pair effect. So + 5 oxidation state of Bi is less stable than its + 3 oxidation state.
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    Why the melting and boiling points of halogens increases in going from top to the bottom of the group?
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    Assign reason for each of the following:
    Noble gases are mostly chemically inert.
    Answer
    NO is paramagnetic in the gaseous state but diamagnetic in the solid and liquid states. Justify?
    Answer
    (CH3)3 N is basic but (CF3)3 N is not basic. Explain.
    Answer
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