The aqueous solution of one of the following satls will turn red litmus to blue. This salt is:

Which one of the following solutions will turn red litmus blue?

Which one of the following will turn red litmus blue ?

Aqueous solution of which of the following oxides turns blue litmus red?

Which of the following ions can turn red litmus solution blue ?

Consider the following salts : Sodium sulphate, Sodium carbonate, Ammonium sulphate The aqueous solution of which of these salts will: turn blue litmus to red ?

A solution turns red litmus blue its ph is:

Which oxide will turn red litmus solution blue ?

Which of the following can turn blue litmus to red colour