In general,the properties that decrease and increase down a group in the periodic table respectively are

Which of the following statements is not correct?

Which of the following orders is not correct about the property shown against it?

Which of the following is incorrect for the indicated property?

Observe the following statements:
$I$. The physical and chemical properties of elements are periodic functions of their electronic configuration.
$II$. Electronegativity of fluorine is less than the electronegativity of chlorine.
$III$. Electropositive nature decreases from top to bottom in a group.
The correct answer is:

Choose the incorrect order.