Question

Assertion : In a chemical substance,the elements are always present in definite proportions by mass. Reason :

Atoms of different elements have different masses as well as chemical properties.
a) If both A and R are True and R is a correct explanation of A.

b) If both A and R are True and R is not a correct explanation of A.

c) If A is true but R is false.

d) If A is false but R may be true/false​

Answer 1

Answer:

A

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Answer 2

option no. B is correct

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