Question

Which of the following statements is not correct?

• A. Oxygen molecule is paramagnetic with two unpaired electrons.
• B. Sulphur shows maximum covalency of four.
• C. Ozone can be easily detected by mercury.
• D. Both sulphurous and sulphuric acid are dibasic in nature.

Answer 1

Answer: (B)

Sulphur shows maximum covalency of four.

Covelency of an atom is the number of covalent bonds that it can form.

While we are finding the maximum covalency of any element we should check the group of that element in the periodic table.

As sulphur is the element of 16 group elements ,so it's maximum covalency is 6 and also in its excited state it has 6 unpaired electrons thus it’s maximum covalency is 6.EX:In $S{F}_6$ the maximum valency is 6.