Solution :
TIPS/Formulae : Compound having sp hybridisation will have linear shape.
$$\therefore C{O_2}$$ or $$\left( {O = C = O} \right)$$ which $$C$$ has in $$sp$$ hybrid state has linear shape.
Releted MCQ Question on Inorganic Chemistry >> Chemical Bonding and Molecular Structure
Releted Question 1
The compound which contains both ionic and covalent bonds is