Chemistry
Give reasons for the following:
Barium chloride solution can be used to distinguish between dil. H2SO4 and dil HNO3.
Answer
Barium chloride soln. reacts with dilute sulphuric acid to give a white ppt. of barium sulphate (BaSO4) but with dil. HNO3 no white ppt. is produced since Ba(NO3)2 is soluble in dil. H2SO4.
H2SO4 (dil.) + BaCl2 (aq.) ⟶ 2HCl + BaSO4 ↓ [white ppt. formed]
HNO3 (dil.) + BaCl2 (aq.) ⟶ No ppt.
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