Which is stronger c-c bond or si-o bond?

Answer 1

Carbon has its four valence electrons in the second electron shell, while Silicon has them in the third. This means that they are farther away from the positively charged nucleus and therefore less strongly bound.

Answer 2

Bond strength is measured by the energy required to disrupt it, which equals the energy released when the bond is made. A simple estimate is provided by melting the material. Quartz, the primary compound of Si and O, melts at 1670 degrees C or about 1940 K. Pure carbon, whether diamond or graphite, melts at about 3600 degrees C or about 3870 K. Thus the C-C bond is about twice as strong as the Si-O bond.

Answer 3

The Si-O bond is generally stronger than the C-C bond due to the higher electronegativity of oxygen compared to carbon. The presence of oxygen in the Si-O bond leads to more effective overlap of atomic orbitals, resulting in a stronger covalent bond.