Verified Answer :

rcukierkorn

CO₂ has a linear structure since there are no lone pairs around the central atom and there are two terminal atoms attached to the central atom, carbon.

Giangiglia

Answer:

a) CO2

Explanation:

The \(CO_2\) has a linear structure because, as it is shown in the figure, the central atom doesn't have a free pair of  electrons which could bend the linear structure. That is the case of the water molecule (H2O).

Methane (CH4) and H2O2 have tetrahedrical structures.

View image Giangiglia