Assertion -The volume ratio of H2 -Cl2 and HCl in the reaction H2-Cl2- 2HCl is 1 - 1 - 2- Reason- Substances always react in such a way that their volume ratio is simple whole number-

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Avogadro's Law & Gay Lussac's Law

Assertion :Th...

Question

Assertion :The volume ratio of $H_{2}, C l_{2}$ and $H C l$ in the reaction $H_{2} + C l_{2} \to 2 H C l$ is $1 : 1 : 2$ . Reason: Substances always react in such a way that their volume ratio is simple whole number.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The volume ratio of $H_{2}, C l_{2}$ and $H C l$ in the reaction $H_{2} + C l_{2} \to 2 H C l$ is $1 : 1 : 2$ .

This is an example of Gay Lussac's law of combining volumes of gases which states that, "when gases react together to produce gaseous products, the volumes of reactants and products bear a simple whole-number ratio with each other, provided volumes are measured at same temperature and pressure ".

Thus, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

Hence, the correct answer is option $A$ .

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Assertion :The volume ratio of H2,Cl2 and HCl in the reaction H2+Cl2→2HCl is 1:1:2. Reason: Substances always react in such a way that their volume ratio is simple whole number.

Assertion :The volume ratio of $H_{2}, C l_{2}$ and $H C l$ in the reaction $H_{2} + C l_{2} \to 2 H C l$ is $1 : 1 : 2$ . Reason: Substances always react in such a way that their volume ratio is simple whole number.