1.

Assertion : therelativemolecularmassofchlorineis 35.5 a.m.u Reason :the naturalabundanceofchlorineisotopesare notequal .

Answer»

A andR arecorrect. Rexplainsthe A .
A is correct, Ris WRONG.
A ISWRONG, Riscorrect
A and Rare correct, Rdoesn'texplains A .

Solution :ATOMICMASS ofchlorinein35.5 amu. Molecularmass wouldbe twicethe atomicmass , thatis 71amu.


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