Question

Which of the following molecules has a linear structure?
a. co2.
b. h2o.
c. ch4.
d. h202.

Answer 1

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.

Answer 2

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.