Question

• Name a gas which is diatomic.

Answer 1

• A diatomic gas means a gas whose molecule contains two atoms.
• The two atoms can be same i.e. the molecule can be heteronuclear or they can be same i.e. homonuclear.
• An example of homonuclear diatomic gas is oxygen, ${\mathrm{O}}_2$
• An example of heteronuclear diatomic gas is carbon monoxide ,$\mathrm{CO}$