State one observation forthe following {5} 1. Dilute HCl is added

State one observation forthe following {5}

1. Dilute HCl is added to silver nitrate solution.

2. Acidulated water is electrolyzed using platinum electrode.

3. Dilute HCl is treated with magnesium sulphide.

4. Reaction of lead nitrate solution with ammonium hydroxide.

5. Ammonium hydroxide is added first in little and then in excess to CuSO4‚Äč


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