Q.

In general second ionisation enthalpy of an atom will be

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a

higher than the first ionisation enthalpy

b

equal to the first ionisation enthalpy

c

higher than the third ionisation enthalpy

d

equal to the third ionisation enthalpy

answer is A.

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Detailed Solution

Second ionisation enthalpy higher than first ionisation enthalpy, because it is more difficult to remove an electron from positive charged ion than from a neutral atom.
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