Question 2(2016)State your observations when:(i) Barium chloride soln. is mixed with sodium sulphate soln.(ii) Concentrated sulphuric acid is added to sugar crystals.

Question

Accepted Answer

(i) White coloured precipitate of barium sulphate is formed when sodium sulphate is mixed with barium chloride.

Na₂SO₄ (dil.) + BaCl₂ (aq.) ⟶ 2NaCl + BaSO₄ ↓ [white ppt. formed]

(ii) Black spongy charred mass of carbon is formed. Steam is seen to be evolved.

$\text{C}_{12}\text{H}_{22}\text{O}_{11}\xrightarrow{\text{Conc. H}_2\text{SO}_4} \text{12C} \small{\space[sugar\space charcoal]} + \text{11H}_2\text{O}$

Study of Compounds — Sulphuric Acid — Question 48

Question 2(2016)