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JEE Main Chemistry Class 11 Classification of Elements and Periodicity in Properties 1 Questions
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Question : 28
Total: 100
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The first ionization enthalpy for oxygen is lower than that of nitrogen.
Reason
R
: The four electrons in
2
p
orbitals of oxygen experience more electron-electron repulsion.
In the light of the above statements, choose the correct answer from the options given below.
[29-Jun-2022-Shift-2]
Both A and R are are correct and
R
is the correct explanation of
A
.
Both A and R are are correct but R is NOT the correct explanation of A.
A
is correct but
R
is not correct.
A
is not correct but
R
is correct.
Validate
Solution:
Nitrogen has half-filled p-orbitals which is stable. Due to this, its
1
st
ionization energy is more than oxygen.
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