Question

Covalent radius of carbon increases,
decreases or remains constant with increase
of s-character in the different hybridized
states ?

Answer 1

The covalent radius is a linear function ofs-character meaning that the shortening from sp³ to sp² carbon is equal to that from sp² to sp carbon and so on. The increase of s-character covalent radius in the different hybridized states of carbon decreases covalent radius of carbon.