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There are five covalent bonds present in an ethyne molecule.
A single bond has - by definition, only one covalent bond.
BaBr2 has two ionic bonds, but no covalent bonds.
Basically there are two types of bonds Ionic bond and Covalent bond, but their sub classes as Coordinate covalent bond, hydrogen bond and Vander wall's bonds also present in different compounds.
2 covalent bonds
It can form four covalent bonds.
It has four covalent bonds.They are polar bonds
maximum of five single covalent bonds as in PCl5
There are four bonds.All are covalent bonds.
Three covalent bonds.
A single covalent bond
Three covalent bonds. One sigma bond and two pi bonds.