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Assertion: Of all the elements, helium h...

Assertion: Of all the elements, helium has the highest value of first ionization enthalpy.
Reason: Helium has the most positive electron gain enthalpy of all the elements.

A

If both (A) and (R) are correct, but (R) is not 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 both (A) and (R) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
C
Helium is the smallest inert gas.
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Knowledge Check

  • Which element has the highest first ionisation potential?

    A
    N
    B
    Ne
    C
    He
    D
    H

  • Which of the following noble gases has the highest positive electron gain enthalpy value?

    A
    Helium
    B
    Krypton
    C
    Argon
    D
    Neon

  • Among the following, the elements of highest first ionisation enthalpy is

    A
    C
    B
    F
    C
    Be
    D
    Ne

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