what will you observe when the blue litmus brought in contact with the gas collected at cathode?why? give reason
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Answer:
The following reactions will take place when Moist blue litmus paper is introduced in the jar of Chlorine
Cl
2
+H
2
O→HOCl+HCl.
HCl+H
2
O→H
3
O
+
+Cl
−
Since H3O
+
has been produced, the moist blue litmus paper will turn red.
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