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Q.

Statement (A): In a chemical substance, elements are always present in definite proportions.
Statement (B): In water, hydrogen and oxygen combine in the ratio of 2 : 1.
Statement (C): In HCl, hydrogen and chlorine combine in the ratio of 1 : 17.

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a

All the statements A, B and C are incorrect

b

A, B are correct and C is incorrect

c

All the statements A, B and C are correct

d

A, B are incorrect and C is correct

answer is B.

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Detailed Solution

$H_{2} O = 2 : 16 = 1 : 8$

$HC l = 1 : 35.5$

“In a chemical substance, the elements are always present in definite proportion by mass however the products formed may be”.

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Statement (A): In a chemical substance, elements are always present in definite proportions.Statement (B): In water, hydrogen and oxygen combine in the ratio of 2 : 1.Statement (C): In HCl, hydrogen and chlorine combine in the ratio of 1 : 17.