Multiple choice

Which of the following statements are false?

  1. Solid form of PCl5 is conducting.
  2. White phosphorous is less reactive than red phosphorous.
  3. The tendency of catenation for nitrogen is more than phosphorous.
  4. NH3 is most basic among the hydrides of 15th group elements.

Select the correct answer using codes given below:

  1. 1 and 2

  2. 1 and 3

  3. 2 and 3

  4. 2 and 4

  5. 3 and 4
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In white phosphorous, there is angular strain in P4 molecule. So, it is less stable and more reactive than red phosphorous. The tendency of catenation for nitrogen is less than phosphorous. N-N bond is weaker than P-P bond due to inter electronic repulsion between non bonding pair of electrons in nitrogen because of its small size.

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