Question

case
copper is the least reactive metal.
Sample Problem 4 : 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: charcoal is a form of carbon, which is a non metal

              when non metal reacts with air. it form non metal oxide which is    acidic in nature. thus when carbon (charcol) burn in air it form an acidic oxide called carbon di oxide

(a)the nature of the gas can be found by adding water to the gas in the test tube And then put some blue litmus solution in the jar. the blue litmus turn into red, this mean that the gas is acidic in nature.

(b) Equation 1 : Burning of Charcoal

       carbon+oxygen----->carbondioxide

         C+O2= CO2

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

                     Carbondioxide + Water = Carbonic Acid

                         CO 2+ H2O ---------> H 3 CO 3

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