Given below are two statements: Statement I: The boiling point of NH₃ is the highest among all the hydrides of Group 15 elements. Statement II: The higher boiling point of NH₃ compared to PH₃ is due to the presence of intermolecular hydrogen bonding. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

Statement I is incorrect because the boiling point of NH₃ is not the highest among Group 15 hydrides. The boiling point order is PH₃ Statement II is correct because NH₃ exhibits intermolecular hydrogen bonding due to the high electronegativity and small size of nitrogen, which is absent in PH₃ . This leads to a higher boiling point for NH₃ compared to PH₃ . Therefore, Statement I is incorrect but Statement II is correct. Answer: Statement I is incorrect but Statement II is correct