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Assertion: Volume of a gas is inversely ...

Assertion: Volume of a gas is inversely proportional to the number of moles of a gas.
Reason: The ratio by volume of gaseous reactants and products is in agreement with their molar ratio.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
D
We know that from the reaction `H_(2) + Cl_(2) to 2HCl` the ratio of the volume of gaseous reactants and products is in agreement with their molar ratio. The ratio of `H_(2) :Cl_(2) : HCl` volumes is 1:1 : 2 which the same as their molar ratio is. Thus volume of gas is directly related to the number of moles. Therefore, the assertion is false but reason is true.
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Knowledge Check

  • Assertion : In a gaseous reaction, the ratio of the volumes of gaseous reactants and products is in agreement with their molar ratio Reason : This is according to Avogadro's hypothesis.

    A
    If both assertion and reason are correct and reason is correct explanation for assertion
    B
    If both assertion and reason are correct but reason is not correct explanation for assertion
    C
    If assertion is correct but reason is incorrect
    D
    If both assertion and reason are incorrect

  • The number of moles of a gas 1 m^(3) of volume at NTP is:

    A
    4.46
    B
    0.446
    C
    1.464
    D
    44.6

  • In each of the following two questions two statements are given one labelled as the Assertion(A) or Statement I and the other labelled as the reason (R) or statement II. Examine these statements carefully and mark the correct choice as per following instructions Assertion (A) - In gaseous reactions, the ratio of the volumes of gaseous reactants and products are in agreement with their molar ratio. Reason (R) - This is accrodance with Avogadro's law.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is not a correct explanation of A
    C
    A is true but R is false
    D
    A is false but R is true