Question

Which of these statements about sulphur is not correct?

• A. It exists in different allotropic forms
• B. It exist octatomic molecule
• C. It can form up to six covalent bonds in compounds
• D. None

Answer 1

The correct option is D None

• Crystalline sulfur consists of puckered $S_8$ rings in the shape of crowns. These can be packed together in two different ways – to form rhombic crystals and to differ-shaped monoclinic crystals, as shown below: Below about 96 °C, rhombic sulfur is the more stable allotrope.
  
• Sulphur exists as an octatomic molecule.
  
• Sulfur usually forms 2 bonds. This is because of its $3p^4$ orbital. p-orbitals allow for 6 places to be filled, hence sulfur tends to form 2 bonds. It can "expand the octet" as it has 6 valence electrons, hence allowing the formation of 6 bonds.
  
• Hence option D is the correct answer.