Decomposition Reactions of Ferrous Sulphate

The video tutorial explains the decomposition reaction of ferrous sulphate crystals. Initially, ferrous sulphate crystals are heated, causing them to lose water molecules and form anhydrous ferrous sulphate. Further heating leads to the decomposition of anhydrous ferrous sulphate into ferric oxide, sulphur dioxide, and sulphur trioxide. The emitted gas has a burning sulphur odor. This process exemplifies a decomposition reaction where a single reactant breaks down into multiple products.

What happens to ferrous sulphate crystals when they are heated in a dry boiling tube?

• They lose water molecules and become white anhydrous ferrous sulphate.

• They remain unchanged.

• They turn into liquid.

• They explode.

Which of the following is NOT a product of the decomposition of anhydrous ferrous sulphate?

• Sulphur trioxide

• Ferric oxide

• Sulphur dioxide

• Hydrogen gas

What is the characteristic smell of the gas emitted during the decomposition of anhydrous ferrous sulphate?

• Burning sulphur

• Odourless

• Sweet

• Minty

What type of reaction is demonstrated when ferrous sulphate decomposes into ferric oxide, sulphur dioxide, and sulphur trioxide?

• Decomposition reaction

• Combination reaction

• Neutralization reaction

• Displacement reaction

Which of the following statements best describes a decomposition reaction?

• A reactant is replaced by another element.

• Two reactants combine to form a single product.

• A single reactant breaks down into multiple products.

• An acid reacts with a base to form salt and water.