Statement-1: Both $C O_{2}$ and $H_{2} O$ are molecules.
Statement-2: A molecule always contain atoms of the same elements.

Both the statements are true, and statement 2 is the corrent explaination for statement 1

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Both the statements are true but statement 2 is not the correct explaination for statement 1

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Statement 1 is true but statement 2 is false

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Statement 2 is true but statement 1 is false

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Solution

The correct option is C Statement 1 is true but statement 2 is false
A molecule is formed when atoms of same or different elements combine together in a constant proportion by mass.
Molecules of compounds such as $C O_{2}$ , $N H_{3}$ and $H_{2} O$ are formed by the combination of atoms of different elements. Hence, statement 1 is true but statement-2 is false.

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Similar questions

Statement 1: $N_{2}$ and $H_{2} O$ are both molecules.
Statement 2: A molecule can have only similar kind of atoms.

C O_{2}

H_{2} O

Statement-1: Both $N_{2}$ and $H_{2} O$ are molecules.
Statement-2: A molecule constitutes of only similar kind of atoms.

Statement-1: $N_{2}$ and $H_{2} O$ are both molecules.
Statement-2: A molecule can have only similar kind of atoms.

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