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The decrease in stability of higher oxid...

The decrease in stability of higher oxidation state in p-block with increasing atomic number is due to:

A

increase in bond energy as going down the group.

B

the reluctance of s-sub shell electrons to participate in the chemical bonding.

C

both are correct.

D

Noble gas configuration achieved by lower oxidation state.

Text Solution

Verified by Experts

The correct Answer is:
B
Down the group the inert pair effect is more pronounced on account of enhanced increase in effective nuclear charge.
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Knowledge Check

  • Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture: A)In alkali metals the reactivity increases but in the halogens it decreases with increase in atomic number down the group B)The reactivity decreases in the alkali metals but increases in the halogens with increases in atomic number down the group. C)In both the alkali metals and the halogen the chemical reactivity decreases with increases in atomic number down the group D)Chemical reactivity increases with increases in atomic number down the group in both the alkali metals and halogens.

    A
    Least ionisation enthalpy on the left and highest negative electron gain enthalpy on the right.
    B
    Non-merallic character on the left and metallic character on the right.
    C
    High atomic radii on the left and small atomic radii on the right.
    D
    Highest electronegativity on the left and least electronegativity on the right.

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