Chapter 1 Chemical Reactions And Equations

The “Heating Ferrous Sulphate Crystals” activity in the chemistry curriculum of Class 10  is a classic example of a decomposition reaction in the chemistry curriculum. This experiment involves heating ferrous sulphate crystals, which initially are green in colour, and observing the changes that occur as a result of heating.

The Formation of Slaked Lime activity in the chemistry curriculum of Class 10 showcases a combination reaction where calcium oxide (quicklime) reacts with water to form calcium hydroxide (slaked lime). This is a critical process in the construction industry for making mortar and plaster.

The Reacting Zinc Granules with Dilute Hydrochloric or Sulfuric Acid  activity in the chemistry curriculum of Class 10 is an engaging experiment that demonstrates a single displacement reaction, where zinc metal displaces hydrogen from the acid to form zinc chloride or zinc sulphate and hydrogen gas. This reaction showcases the reactivity of metals and their ability to replace less reactive elements in compounds.

The Mixing Lead Nitrate and Potassium Iodide Solutions activity in the chemistry curriculum of Class 10 is an excellent demonstration of a double displacement reaction, a type of chemical reaction where parts of two ionic compounds are exchanged and form two new compounds. This experiment involves mixing aqueous solutions of lead nitrate and potassium iodide, leading to the formation of lead iodide, a yellow precipitate, and potassium nitrate, which remains in solution.