Question

give the characteristics tests for following gases co2, so2 ,o2, h2

Answer 1

to test co2 mix it with lime water .lime water will change milky in colour .
to test so2 .we know that it is brown in colour and has unpleasant odour .
to test h2 bring match stick near the mouth of test tube .it will create poping sound .
to test o2 bring match stick near the mouth of test tube it will support combustion .

hope it helped.

Answer 2

Answer:

1.to test co2 mix it with lime water .lime water will change milky in colour .

2.to test so2 .we know that it is brown in colour and has unpleasant odour .

3.to test h2 bring match stick near the mouth of test tube .it will create poping sound .

4.to test o2 bring match stick near the mouth of test tube it will support combustion .