Carbon (C) and oxygen (O2) react to form a substance carbon dioxide (CO2).
Which statement about CO2 is false?
a) CO2 can be classified as a pure substance.
b) CO2 shows the properties of carbon as well as oxygen.
c) CO2 is a compound of carbon and oxygen.
d) The reaction involves changes in energy.
Dear student ,
option (b) is correct
Reason : CO2 is a chemical compound formed by the reaction between carbon and oxygen in a fixed proportion so it is a pure substance and in the formation of CO2 energy is liberated i.e. exothermic process .
Now as per the law of chemical combination the compound formed by their consituents does not show th individual properties of elements from them it is formed
Regards
option (b) is correct
Reason : CO2 is a chemical compound formed by the reaction between carbon and oxygen in a fixed proportion so it is a pure substance and in the formation of CO2 energy is liberated i.e. exothermic process .
Now as per the law of chemical combination the compound formed by their consituents does not show th individual properties of elements from them it is formed
Regards