Answer : The correct options are, [tex]H_2O\text{ and }CO[/tex]
Explanation :
Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.
The covalent compound are usually formed when two non-metals react.
Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.
Ionic compound are usually formed when a metal reacts with a non-metal.
(1) Magnesium oxide (MgO) : In this compound, magnesium is a metal and oxygen is non-metal. When magnesium atom donates electron to oxygen atom then it forms an ionic compound.
(2) Water [tex](H_2O)[/tex] : In this compound, hydrogen and oxygen is non-metal. When hydrogen and oxygen atom share their electron then it forms a covalent compound.
(3) Sodium fluoride (NaF) : In this compound, sodium is a metal and fluorine is non-metal. When sodium atom donates electron to fluorine atom then it forms an ionic compound.
(4) Carbon monoxide [tex](CO)[/tex] : In this compound, carbon and oxygen is non-metal. When carbon and oxygen atom share their electron then it forms a covalent compound.
Hence, the correct options are, [tex]H_2O\text{ and }CO[/tex]
