An aqueous solution of a salt turns blue litmus to red. The salt could be the one obtained by the reaction…

An aqueous solution of a salt turns blue litmus to red. The salt could be the one obtained by the reaction of :
  1. HNO3 and NaOH
  2. H2SO4 and KOH
  3. CH3COOH and NaOH
  4. HCl and NH4OH

Solution

HCl and NH4OH

Asked in: CBSE

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