3 Questions
Match the following chemical elements with their atomic numbers:
Carbon = 6 Oxygen = 8 Sodium = 11 Iron = 26
Match the following chemical reactions with their type:
Combustion of methane = Combustion Photosynthesis = Endothermic Rusting of iron = Oxidation-reduction Neutralization of acid and base = Exothermic
Match the following chemical compounds with their common uses:
Sodium chloride = Table salt Calcium carbonate = Antacid Hydrogen peroxide = Bleaching agent Sulfuric acid = Battery acid
Test your knowledge of chemistry with this 11th-grade half-yearly question paper for Samacheer curriculum. Match chemical elements with their atomic numbers, chemical reactions with their types, and chemical compounds with their common uses. This quiz will challenge your understanding of chemistry concepts and applications.
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