Question

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.

(c)Write one advantage and one disadvantage of the gas evolved.

(d) How will you test this gas?



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Answer 1

Answer:

Explanation:

the gas evolved is CO2 ( carbon dioxide )

a) To find nature prepare an aqueous solution of gas with water and test it with litmus paper.. As the gas is CO2 so with water it will be carbonic acid and after testing its nature with litmus it will be red so its acidic in nature

b) Carbon dioxide + water => Carbonic acid

c) ADVANTAGE

carbon dioxide absorbs radiation(heat) from sun to keep Earth warm.

DISADVANTAGE

If increased in percentage CO2 leads to air pollution and global warming

d) We can test this gas by preparing its aqueous solution with water and testing it with an indicator

Answer 2

Explanation:

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