$Si_3O_9^{-6}$ (having three tetrahedral units) is represented as:

Give the preparation of carbon monoxide. Explain the properties of carbon monoxide and give its uses.

Element showing the phenomenon of allotropy is

Write the general and empirical formula of silicone.

Which of the following compounds of elements in group $14$ would you expect to be most ionic in character?

The number of six-membered carbon rings and five-membered carbon rings present in Buckminsterfullerene are $x$ and $y$ respectively. The sum of $x$ and $y$ is: