What do you observe when ammonium salt is heated with caustic soda solution? Write the word equation:

How will you distinguish NH₄OH solution from NaOH solution?

Write balanced equation:

(a) Reaction of sodium hydroxide solution with Iron (III) chloride solution

(b) Copper sulphate solution with ammonium hydroxide solution

The colour of an aqueous solution of copper sulphate is:

1. Green
2. Brown
3. Blue
4. Yellow