In a laboratory, the teacher asked Shreya how many types of gas can be obtained from dilute H2SO4. What do you think so?
All the above.
Their respective methods of preparations are:
Any carbonate salt and dilute H2SO4 gives CO2 gas.
Any sulphite salt and dilute H2SO4 gives SO2 gas.
Any sulphide salt and dilute H2SO4 gives H2S gas.