Question

Among the members of V A group (N, P, As, Sb and Bi), which of the following properties shows an increase as we go down from nitrogen to bismuth.

• A. Stability of +3 oxidation state
  
• B. Acidic nature of the pentoxide
• C. Electronegativity
• D. All of the above.

Answer 1

The correct option is A Stability of +3 oxidation state


Stability of $+3$ oxidation state increases down the group for group $VA$ elements due to inert pair effect.

Moving down the group metallic character increases. Therefore, acidic character also decreases.

Down the group atomic size increases due to which electronegativity of elements decreases.