JEE Main20203 Sep 2020Evening ShiftChemistrys Block ElementsActual
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
Options
- A(I), (II) and (IV)
- B(I), (III) and (IV)
- C(II), (III) and (IV)
- D(I), (II) and (III)
Correct answer
A. (I), (II) and (IV)
Step-by-step solution
Charge/radius ratio of Be and Al is same because of diagonal relationship. Remaining statements are correct.