1.

Assertion: atomicmassof aluminium is 27 Reason: anatomof aluminiumis27timesheavierthan(1)/(12 ^(th)) of themassof theC- 12atom .

Answer»

A ANDR arecorrect. Rexplainsthe A .
A is CORRECT, Ris wrong.
A iswrong, Riscorrect
A and RARE correct, Rdoesn'texplains A .

ANSWER :D


Discussion

No Comment Found