Question

10. Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. (a) How will she find the nature of the gas ? (b)Write down word equations of all the reactions taking place in this process.​

Answer 1

Answer：

(a) Saloni should add some water in the test tube in which gas was collected. Shake the test tube and then bring a litmus paper near the test tube.The solution will turn litmus paper red. This shows that the gas is acidic.

(b)Equation 1:Burning of charcoal

Carbon+Oxygen→ Carbon Dioxide

C+02→C02

Equation 2:Adding water to the gas to make the solution

Carbon Dioxide +Water→CarbonicAcid

CO2+H20→H3CO3