Question

name four gases that can be prepared in laboratory using dilute H2 S o4 so how they can be prepared

give four gases and how the four gases can be prepared??​

Answer 1

Answer: he four gases are: 1) H2 gas 2) CO2 gas 3) SO2 gas 4) H2S gas

Their respective methods of preparations are:

1) Any carbonate salt and dilute H2SO4 gives CO2 gas.

2) Any sulphite salt and dilute H2SO4 gives SO2 gas. 4) Any sulphide salt and dilute H2SO4 gives H2S gas

Explanation:

Answer 2

Answer:

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Explanation:

Hydrogen chloride gas is prepared by treating Sodium chloride with concentrated sulphuric acid. The HCl gas is passed through a drying agent to remove moisture where concentrated sulphuric acid plays the role of dehydrating agent as well.