Verified Solution • 2025–26 Session moderate

QJEEM20Ch3f8d: JEE Main 2020 Chemistry - Class 11 JEEM20Ch3f8d Solution: Among the statements (I – IV), the correct ones are: (I) Be has …

Among the statements (I – IV), the correct ones are:
(I) Be has smaller atomic radius compared to Mg.
(II) Be has higher ionization enthalpy than Al.
(III) Charge/radius ratio of Be is greater than that of Al.
(IV) Both Be and Al form mainly covalent compounds.

Multiple Choice Options

  • A (I), (II) and (IV)
  • B (II), (III) and (IV)
  • C (I), (III) and (IV)
  • D (I), (II) and (III)

Step-by-Step Verified Solution

Be < Mg (atomic radius)

Be > Al (I.E1 greater than Al because of fully filled valence shell of Be)

Charge/radius ratio of Be is less than that of Al.

Both Be and Al form mainly covalent compound.

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