JEE Main 20203 SeptemberEvening Shift
- Exam
- JEE Main
- Year
- 2020
- Date
- 3 September
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- s Block Elements
JEE Main 2020 · 3 September · Evening Shift · Chemistry · s Block Elements
Among the statement (I – IV), the correct ones are: (I) Be has...
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 and is same because of diagonal relationship. Remaining statements are correct.