1.

Assertion A : Newlands arranged the then known elements in order of musical notes. Reason R: According to Newlands, proton is responsible for the arrangement of elements in the periodic table.

Answer»

Assertion A and reason R are TRUE, and reason R is the CORRECT EXPLANATION of assertion A.
Assertion A and reason R are true, but reason R is not the correct explanation of assertion A.
Assertion A is corret but reason R is FALSE.
Assertion A is false but reason R is true.

Answer :C


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