Question

explain why carbon forms compounds mainly by covalent bond explain in brief two main reasons for carbon forming a large number of compounds why does carbon forms strong bonds with other data​

Answer 1

Because carbon can't hold 4 more electrons and cannot donate 4 electrons because it requires a lot of energy.
Reasons are Tetra valency and Catenation

Answer 2

if carbon would form ionic bond it has to gain or loose it's 4 valence electrons which is very difficult to be stable against 6 protons