Identify the salts P and Q from the observations

Identify the salts P and Q from the observations given below:

1.  On performing the flame test salt P produces a lilac coloured flame and its solution gives a white precipitate with silver nitrate solution, which is soluble in Ammonium hydroxide solution.
2.  When dilute HCl is added to a salt Q, a brisk effervescence is produced and the gas turns lime water milky.

When NH₄OH solution is added to the above mixture (after adding dilute HCl), it produces a white precipitate which is soluble in excess NH₄OH solution.

Answer

1. KCl or potassium chloride
2. ZnCO₃ or Zinc carbonate

• Exam Year: 2017