Write the names of the allotropic forms of sulphur. 

Write a short note on the allotropy of sulphur.

What is allotropy ? Explain the different allotropic forms of phosphours.

Explain about allotropic forms of carbon.

Most reactive allotropic form of Phosphorous is

Write the structure and oxidation numbers of sulphur in tetrathionic acid.

Give the IUPAC name of the product formed when isobutylene is treated with a few drops of concentrated sulphuric acid.

How are different forms of waste materials sent out by human body ? Write the names of those organs which help in excretion in tabular form.

The hardest allotrope of carbon: