Which of the following salts gives an aqueous solution with pH less than 7?

1. A salt of a strong acid and a weak base gives an acidic solution. 2. Ammonium chloride comes from HCl (strong acid) and ammonia (weak base). 3. Its aqueous solution is therefore acidic, with pH less than 7. _Source: RRB Group D CEN-02/2018 PYQ, Q.52._