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Assertion: Electron gain enthalpy value ...

Assertion: Electron gain enthalpy value of the 3rd peirod p-block elements of the mordern periodic table are generally more negative than the 2nd period element of the same group.
Reason: Due to smaller atomic size of the 2nd peirod element, its electron density is high which eases the addition of electron.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • The electronic configuration of the atom of an element X is 2,8,4. In modern periodic table, the element X is placed in

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

  • Assertion: Most of the compounds of p-block elements are covalent. Reason: p-block elements, in general, have high electron affinities.

    A
    Both A and B true and R is the correct explanation A
    B
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    C
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    D
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