Question

Identify the type of chemical reaction taking place (i) on mixing a solution of potassium chloride with silver nitrate, and insoluble white substance is formed. (ii) on heating green coloured ferrous sulphate crystals, reddish-brown solid is left and smell of a gas having odour of burning sulphur is observed.

September 13, 2024

Answer

Scenario	Type of Reaction	Key Observations
KCl + AgNO₃	Double Displacement (Precipitation)	White precipitate (AgCl) forms
Heating FeSO₄	Thermal Decomposition	Reddish-brown Fe₂O₃, pungent SO₂ gas

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