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Q.

Statement (A): In water, hydrogen and oxygen combine in the ratio of 2:1 of weights.

 Statement (B): In HCl, hydrogen and chlorine combine in the ratio of 1: 17 of weights.

Statement (C): In a chemical substance, elements are always present in definite proportions by their atomic mass.                                                                                                              

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a

A and B are incorrect but C is correct            

b

All the above statements are incorrect            

c

A and B are correct but C is incorrect

d

All the above statements are correct

answer is D.

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Detailed Solution

In a chemical substance, elements are always present in a definite proportion by weight.

In water H and O combine in the ratio 2:16  of weight (or) 1:8 ,not 2:1

HCl ratio is 1:35.5   not 1:17.

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