Write 'F' for true and for false for the following statements
One gets asphyxiated in an atmosphere of CO.
Hence, the given statement is true.
D. Write ‘True' or ‘False’ for the following statements.
5. The trapping of solar heat energy in the earth's atmosphere is called greenhouse effect.
Charcoal is used in the purification of water.
7. Write True for the true statement and False for the false one.
(d). The valency of sodium is 1.
Write 'T' for true and ‘F’ for false for the following statements.
Carbon is not found in the free state of nature.