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Q.

A non-metal M forms MCl3, M2O5 and Mg3M2 but does not form MI5. Then incorrect statement regarding non-metal M is:

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a

M can form multiple bond

b

M is of second period element

c

Atomicity of non-metal is 4

d

The range of oxidation number for M is +5 to -3

answer is C.

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Detailed Solution

M exhibits two O.S.  +3 and +5, but covalency cannot be S;Hence M cannot expand its valence shell.Therefore M will be nitrogen with two atormicity.
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