Most acidic and basic oxides in $2nd$ period elements are formed by which compound?

Q. Which element of 2nd period forms most acidic oxide?

Q. Among the second period which group element form most acidic oxide.

Q.

out of Li , C and N which form the most basic oxide and which form the most acidic oxide?

Q. The following are some statements about periodic properties.
i) Atomic size decreases from left to right in a period.
ii) The EA of $2^{nd}$ group elements in VA, VIA and VIIA are greater than the first element.
iii) Acidic nature of oxides decreases and basic nature of oxides of elements increased down the group.
iv) Atomic size increases from left to right in a period.