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Why is the electron gain enthalpy of O o...

Why is the electron gain enthalpy of O or F less than that of S or Cl?

A

Assertion and reason both are correct statements and reason is correct explanation for assertion.

B

Assertion and reason both are correct statements 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.

Text Solution

Verified by Experts

The correct Answer is:
D
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Similar Questions

Explore conceptually related problems

Give reason for the following. a) The electron gain enthalpy of O is less negative than that of S. b) The size of anion is larger than the parent atom.

" The electron gain enthalpy of "O" is less negative than that of "S" ."

Assertion: magnitude of electron gain enthalpy of oxygen is less than that of fluorine but greater than that of nitrogen. Reason: Ionisation enthalpy order is as follows: N gt O lt E .

Electron gain enthalpy of fluorine is less than that of chlorine. Why?

Assertion:For the elements O or F,the electron gain enthalpy is less negative than that of the succeeding element. Reason:Electron gain enthalpy becomes less negative as we go down a group.

Knowledge Check

  • Second electron gain enthalpy:

    A
    is always negative
    B
    is always positive
    C
    can be positive or negative
    D
    is always zero

  • Assertion: magnitude of electron gain enthalpy of oxygen is less than that of fluorine but greater than that of nitrogen. Reason: Ionisation enthalpy order is as follows: N gt O lt E .

    A
    If both assertion and reason are true annd the reason is the correct explanation of assertion
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion
    C
    If assertion is true but the reason is false
    D
    if assertion is false but the reason is true

  • Assertion:For the elements O or F,the electron gain enthalpy is less negative than that of the succeeding element. Reason:Electron gain enthalpy becomes less negative as we go down a group.

    A
    If both assertion and reason is the correct explanation of assertion.
    B
    If both assertion and reason is the correct explanation of assertion.
    C
    If both assertion and reason is the correct explanation of assertion.
    D
    If both assertion and reason is the correct explanation of assertion.