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Which of the following statements is/are correct?

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The second ionization enthalpy of oxygen element is greater than that of fluorine element.

The third ionization enthalpy of phosphorus is greater than that of aluminium

The first ionization enthalpy of aluminium is slightly greater than that of gallium

The second ionization enthalpy of copper is greater than that of zinc

answer is A.

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Detailed Solution

Due to higher effective nuclear charge, Ga has greater first ionization enthalpy than Al.

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