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Assertion: Cu is less reactive than hydr...

Assertion: Cu is less reactive than hydrogen.
Reason : `E_(Cu^(2+)//Cu)^(Theta)` is negative.

A

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

B

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

C

Assertion is true but the reason is false.

D

Both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
Assertion is true, but the reason is false.
Standard electrode potential of `E^(@)" "Cu^(2+)//Cu=0.34`
V and `E_(H^(+)//H_(2))^(Theta)=0.0V`. This shows that copper is less reactive than hydrogen.
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Knowledge Check

  • Assertion : N_2 is less reactive than P_4 . Reason : Nitrogen has more electron gain enthalpy than phosphorus.

    A
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    B
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    D
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  • Assertion (A): Cu cannot liberate hydrogen from acids. Reason (R ): Because it has positive electrode potential.

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    B
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    C
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    D
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  • If galvanic cell is formed by standard hydrogen electrode with by E_(Cu^(2+)|Cu)^(Theta)=+0.34V in standard condition, so what is Cu^(2+)|Cu electrode ?

    A
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    B
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    C
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    D
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