1.

(A) Among 15^(th) group elements nitrogen has the least B.P where as Bi has the high B.P than N. (R ) Nitrogen is a non metal where as Bi is a metal

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 :2


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