- Messages
- 67
- Reaction score
- 6
- Points
- 18
ThanksFor Q.17 is actually very simple. (A) can occur because NH3 can be a base and SO3 can be an acid. (B) is also correct because in this reaction, ammonium salt is formed where ammonium itself involved dative covalent bond. (C) is correct because NH4+ and SO42- to give (NH4+)2SO4 which can be considered as Ionic bond formation.
Since A,B and C are out, that leaves you with D.