CBSE Class 10 Chemistry Acids Bases and Salts Online Test

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Question 1

Question

Why does dry HCl gas not change the colour of the dry litmus paper?

	Answer
	No H3O+ ions will be present, litmus changes colour only in the presence of H3O+ ions
	None of the above
	Blue litmus becomes dry in presence of dry HCl gas
	HCl gas acts asa dehydrating agent