Multiple choice

Which of the following statements are incorrect? P. Basicity of phosphorous acid is three. Q. The bleaching action of SO2 is due to its reducing action. R. Sulphur acts as an oxidising agent in the vulcanisation of rubber. S. The C-C bond length in graphite is shorter than that in diamond.

  1. P and Q

  2. P and R

  3. Q and R

  4. Q and S

  5. R and S

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This option is correct because the basicity of phosphorous acid (H3PO3) is two and sulphur acts as cross linking agent in the vulcanisation of rubber.