PROCEDURE
Locate the gas cylinders available in the lab.
Note the colour of the cylinder (to a maximum of two and exclude the LPG) and bands on it (if any) and record them in the column (i) and (ii) of the table given under report.
Identify the gas and its nature and complete the information in the other columns of the table.
Repeat the same procedure for all the cylinders.
Carefully observe the way, gas cylinders are stored and used in the laboratory, and mark your observations in the report.