Choose the correct order from the following :

Options

A. `{:(N_(2)O lt N_(2)O_(3) lt NO,,, "Acidic character"):}`
B. `{:(MgO gt Al_(2)O_(3) gt SiO_(2),,, "Basic character"):}`
C. `{:(Fe^(2+) lt Fe^(3+) lt Mn^(2+),,,"Ionic radius order"):}`
D. `{:(Sc gt La gt Y,,, "Ionisation energy order"):}`

Answer

B

Explanation

Acidic character increases with increases of electronegativity of central atom. Ionic radius decreases with increases in positive charge on cation.