Question

test for chlorine gas

Answer 1

Answer:

The test for chlorine can use either type of litmus paper, but blue litmus paper is used most commonly. The litmus paper must be damp - the water dissolves some of the chlorine so that it can react with the indicator on the litmus paper. This test shows that chlorine is a powerful bleach.

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Answer 2

Answer:

using litmus paper..either blue or red