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Select the group where EN increases down...

Select the group where `EN` increases down the group

A

`F,Cl,Br`

B

`Li,Na,K`

C

`Ca, Sr, Ba`

D

`Zn, Cd, Hg`

Text Solution

Verified by Experts

The correct Answer is:
D
`Zn, Cd` and `Hg` belong to `3d, 4d` and `5d` series of transition elements (group 12). Due to imperfect screening effect of `d-` and f-orbitals in transition elements, `EN` deceases down the group 12.
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Knowledge Check

  • Amongst elements of Group 15 the property which increases down the group is

    A
    Stability of - 3 oxideation state
    B
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    C
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  • Assertion : Acidity of hydrides of group 16 elements increases down the group. Reason : Electronegativity of these elements increases down the group.

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    If both assertion and reason are correct and reason is correct explanation for assertion.
    B
    If both assertion and reason are correct but reason is not correct explanation for assertion.
    C
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    D
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  • Solubility of groups 1 and 2 fluorides increases down the group'. Which of the following is correct explanation for the above given statement ?

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    Both the hydration and lattice energies decrease down the group `(darr)` but decrease in lattice energy is rapid.
    B
    Both the energies increase down the group but increase in hydration energy is rapid.
    C
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    D
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