1.

(A) Among trihalides of nitrogen NF_(3) is most stable (R ) NF_(3) is a ionic compound.

Answer»

Both (A) and (R ) are true and (R ) is the correct EXPLANATION of (A)
Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
(A) is true but (R ) is FALSE
Both (A) and (R ) are false

Answer :3


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