Multiple choice

Which of the following properties of group 15 hydrides does not follow the order NH3 > PH3 > AsH3 > SbH3 > BiH3?

  1. Stability
  2. Bond angle
  3. Basicity
  4. Reducing power

  1. Only 1

  2. 1 and 2

  3. 2 and 3

  4. 3 and 4

  5. Only 4
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The reducing power of hydrides increases down the group due to decrease in bond dissociation energy down the group. Hence, correct order of reducing power of group 15 hydrides is NH3 < PH3 < AsH3 < SbH3 < BiH3.

Keep practicing — related questions