Why pura acetic acid does not turn blue litmus to red?

Dry hydrogen chloride gas does not turn blue litmus to red whereas hydrochloric acid does. Why?

Blue litmus turns red in

__are sour to taste and turn blue litmus to_

Who am I? I am derived from tomato and turn blue litmus into red.

Statement A : The substances which are sour to taste and turns red litmus to blue are acidic in. Statement B:The substances which are soapy to touch and turns blue litmus to red are basic in nature.

Substance 'A' : It is produced by non metallic oxide. Substance 'B' : It produces OH- ions in aqueous solution. 1) Which substance can turn blue litmus to red ? Why ? 2) How do you prepare substance 'B' ?

There are 3 substances in test tube A, test tub1e B and test tube C. B and C can form A. B and C can form H_2 gas. A, Band C gives different colours ,with universal solution. B turns blue litmus into red but not A and C. What would be A, B and C ?

The substance that turns blue litmus to red are ______in nature.

The substance that turns blue litmus to red is…………in nature.

Which of the following can turn blue litmus to red colour