Question

the indicator which doesn't change color on passage of I-ICI gas is dash​

Answer 1

Answer:

Hydrogen chloride

Explanation:

Answer 2

Answer:

Dry HCl does not change the colour of litmus paper because water is required for the formation of hydronium ions which is responsible for the colour change of litmus paper. Since there is no water in this case, the formation of hydronium ions won't take place and no colour change would be observedl

Explanation:

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