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JEE Main Chemistry Class 12 The P Block Elements (15-18) Part 2 Questions
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Question : 42
Total: 84
The incorrect statement is
[27-Jul-2022-Shift-1]
The first ionization enthalpy of
K
is less than that of
Na
and
Li
.
Xe does not have the lowest first ionization enthalpy in its group.
The first ionization enthalpy of element with atomic number 37 is lower than that of the element with
atomic number 38.
The first ionization enthalpy of Ga is higher than that of the d-block element with atomic number 30 .
Validate
Solution:
On moving down in a group ionisation energy decrease
∴
1
st
ionisation enthalpy order is
Li
>
Na
>
K
Zn
has more ionisation energy as compared to
Ga
because of their pseudo inert gas configuration.
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