JEE Main 2026 Model Paper 1

Question : 36 of 75

Marks: +1, -0

Which of the following statement is incorrect.

The second ionisation enthalpy of oxygen is greater than that of flourine element.
The third ionization enthalpy of phosphorus is greater than that of aluminium.
The first ionization enthalpy of aluminium is slight greater than that of gallium.
The second ionisation enthalpy of copper is greater than that of zinc.

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