X: Alcohol (ethanol, C₂H₅OH) – a good solvent
Y: Hydrogen gas (H₂)
Z: Sodium ethoxide (C₂H₅ONa) – used in making vegetable ghee
Reaction: 2C₂H₅OH + 2Na → 2C₂H₅ONa + H₂↑
10 years solved cbse sample paper for class 10 science
2026 board exam extra sample paper by tiwari academy
The compound X is ethanol, which is a good solvent. When ethanol reacts with sodium, it forms two products: Y, which is sodium ethoxide, and Z, which is hydrogen gas. The hydrogen gas produced is used in the hydrogenation of vegetable oils to convert them into vegetable ghee. The reaction can be represented as ethanol reacting with sodium to produce sodium ethoxide and hydrogen gas, showing the displacement of hydrogen from ethanol by the metal sodium.