Which one of the following statements about carbon dioxide is not

Which one of the following statements about carbon dioxide is not correct?

It is a basic oxide.
It is a greenhouse gas.
It forms dry ice.
It is consumed during photosynthesis.
This question was previously asked in
UPSC CISF-AC-EXE – 2017
The statement that carbon dioxide is a basic oxide is not correct.
Oxides of non-metals, like carbon dioxide (CO₂), are typically acidic oxides. When dissolved in water, CO₂ forms carbonic acid (H₂CO₃). Basic oxides are usually formed by metals.
Carbon dioxide is indeed a significant greenhouse gas, trapping heat in the atmosphere. Solid carbon dioxide is commonly known as dry ice. During photosynthesis, plants consume carbon dioxide from the atmosphere, along with water and sunlight, to produce glucose (sugar) and oxygen.