Answer the following questions, relating your answers only to salts in

Answer the following questions, relating your answers only to salts in the list given below : Anhydrous calcium chloride, copper sulphate. 5H2O, sodium carbonate. 10-water. (i) Which compound is efflorescent ?(ii) Which compound is blue in colour ?(iii) Which compound is deliquescent ?(iv) What would be seen on mixing a solution of calcium chloride with a solution of sodium carbonate ?(v) Write the balanced equation for the reaction occuring when a solution of calcium chloride is mixed with a solution of sodium carbonate.

Answer»

(i) Sodium carbonate. 10-water.

(ii) Copper sulphate. 5H₂O.

(iii) Anhydrous calcium chloride.

(iv) A white precipitate of calcium carbonate is seen.

(v) CaCl₂ (aq.) + Na₂CO₃(aq.) → CaCO₃ (White ppt) + 2NaCl (aq.)