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Which one of the following statements is...

Which one of the following statements is/are incorrect :

A

Atomic radius of Be is larger than that of Al.

B

`Delta_(eg)H` of Se is -195 kJ/mol where as that of O is -141 KJ/mol.

C

First ionization energy of N is greater than that of Ne

D

CO, NO and `N_(2)O` are neutral oxides.

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The correct Answer is:
A, C
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