1.

The incorrect among the following is:

Answer»

The FIRST IONIZATION potential of Al is less than the first ionization potential of Mg
The second ionizaztion potential of Mg is GREATER than the second ionization potential of Na
The first ionization potential of Na is less than the first ionization potential of Mg
The THIRD ionization potential of Mg is greater than the third ionization potential of Al

Answer :B


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