Geo-Scientist Prelims 2023 Chemistry Q26: Consider the following statements regarding the resonating…

Consider the following statements regarding the resonating structures contributing to the resonance hybrid of a molecule :

1. Contributing structures should have same number of unpaired electrons.
2. Contributing structures should have negative charge residing on more electronegative atom.
3. Contributing structures should not have large energy difference between them.

Which of the statements given above is/are correct ?

1. (a) 1 only
2. (b) 1 and 2 only
3. (c) 1, 2 and 3
4. (d) 2 and 3 only