Among the statement (I – IV), the correct ones are:

(I) Be has smaller atomic radius compared to Mg.

(II) Be has higher ionization enthalpy than AI.

(III) Charge/radius ratio of Be is greater than that of Al.

(IV) Both Be and Al form mainly covalent compounds

• Correct answer
  A

  (I), (II) and (IV)
• B

  (I), (III) and (IV)
• C

  (II), (III) and (IV)
• D

  (I), (II) and (III)

Hence, the correct answer is option: 'A'.