A) The gas produced in the test tube is:
A. Hydrogen
B. Hydrogen chloride
C. Hydrogen sulphide
D. Sulphur dioxide
Answer:B
A) The gas produced in the test tube is:
A. Hydrogen B. Hydrogen chloride C. Hydrogen sulphide D. Sulphur dioxide
Explanation: When concentrated sulphuric acid is added to sodium chloride, the following reaction takes place: