Question

Which of the following statement(s) is/are incorrect regarding group 15 elements?

• A. As we go down the group metallic character increases
• B. As we go down the group metallic character decreases
• C. Antimony has the lowest boiling point in the group
• D. Both b and c are incorrect

Answer 1

The correct option is D Both b and c are incorrect

Physical properties of group 15 elements:
1. All the elements of group 15 except Bi are ​polyatomic.
2. On moving down the group, metallic character increases.
3. The correct order of boiling point is $N<P<As<Bi<Sb$
4. From N to As the melting point increases and from As to Bi it decreases.
Hence option (a), (c) are the correct answers.