Answer :
Answer: triple bonds
Explanation:
Carbon has an atomic number of 6, and an electron configuration of 1s2, 2s1 2p3.
Now, according to hund's rule, it accept an electron in its S-orbital from Hydrogen, an element with one electron to form a completely filled S-orbital; but incompletely filled D-orbital.
Thus, given the constraint, a triple bond then exists in the carbon compound as found in alkynes