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Assertion: pH of water increases on incr...

Assertion: pH of water increases on increasing temperature.
Reason: `H_(2)O rarr H^(+) + OH^(-)` is an exothermic process.

A

Both assertion and reason are correct and reason is correct explanation of assertion.

B

Both assertion and reason are correct and reason is not correct explanation of assertion.

C

Assertion is true & reason is false.

D

Both assertion and reason are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
D
NA
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Knowledge Check

  • For the following Assertion and Reason the correct option is: Assertion :The pH of water increases with increase in temperature Reason : The dissociation of water into H^(+) and OH^(-) is an exothermic reaction

    A
    Assertion is not true, but reason is true
    B
    Both assertion and reason are true, but the reason is not the correct explanation for the
    C
    Both assertion and reason are false
    D
    Both assertion and reason are true, and the reason the correct explanation for the assertion

  • Assertion (A): pH of water increases with an increase in temperature. Reason (R) : K_(w) or water increases with increase in temperature.

    A
    If both (A) and (R) are correc, and (R) is the correct explanation of (A).
    B
    If both (A) and (R) are correct but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If (A) is incorrect, but (R) is correct.

  • Assertion: pH of water increases with increases in temperature . Reason : With increase in temperature, K_w of water increases.

    A
    Assertion and reason both are correct statements and Reason is correct explanation for assertion.
    B
    Assertion and reason both are correct statement but reason is not correct explanation for assertion
    C
    Assertion is correct statement but reason is wrong statement.
    D
    Assertion is wrong statement but reason is correct statement

    • Similar Questions

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    With increases in temperature pH of pure water

    Assertion (A): Resistivity of a conductor, increases on increasing temperature. Reason (R): As temperature increases, time between collision decreases.

    Assertion: In physisorption, adsorption increase with increases in temperature. Reason: Physisorpation is of exothermic nature.

    Assertion: Rate of constant increases with the increase in temperature. Reason: Number of collisions increase with the increase in temperatures.

    Assertion : Rate of reaction increases with increase in temperature. Reason : Number of effective increases with increase in temperature.

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