Question

list 2 characteristics features of carbon which when put together give rise to a no. of carbon compounds​

Answer 1

The two characteristics are:
1. Tetravalency - Tetra stands for 4 and valent stands for valency.
2. Catenation - catenation means self bonding and the formation of long chains.

Answer 2

1) catenation i.e the property of self combination through which carbon makes long chains.

2) tetravalency through which carbon shares electrons and makes covalent bonds.