Single Answer MCQ
Q-00039938
Why is HCl gas unable to change the color of dry litmus paper?
1
It is not acidic
2
It requires water to ionize
3
It is a weak acid
4
It is colorless
Answer and Solution
Answer
B. It requires water to ionize
Solution:
Dry HCl gas does not change the color of dry litmus paper because it requires ionization in water to release H+ ions which activate the indicator.
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