Chemistry in Everyday Life MCQs in Everyday ScienceBy: Prof. Dr. Fazal Rehman | Last updated: May 19, 2025 20 Score: 0 Attempted: 0/20 Subscribe 1. : What common household item is a weak acid used for cooking and cleaning? (A) Baking soda (B) Vinegar (C) Salt (D) Sugar 2. : Which substance is commonly used as a preservative in processed foods? (A) Sodium chloride (B) Sodium benzoate (C) Calcium carbonate (D) Magnesium sulfate 3. : What is the primary chemical component of table salt? (A) Sodium chloride (B) Potassium nitrate (C) Calcium sulfate (D) Magnesium chloride 4. : Which gas is commonly used in carbonated drinks to make them fizzy? (A) Oxygen (B) Nitrogen (C) Carbon dioxide (D) Hydrogen 5. : Which household chemical is often used as a disinfectant and is also a common bleaching agent? (A) Ammonia (B) Hydrogen peroxide (C) Sodium bicarbonate (D) Ethanol 6. : Which compound is primarily responsible for the “hardness” of water? (A) Sodium chloride (B) Calcium carbonate (C) Potassium chloride (D) Magnesium sulfate 7. : Which of the following is an example of a natural polymer commonly found in food? (A) Starch (B) Nylon (C) Polyethylene (D) PVC 8. : What is the chemical formula for baking soda, commonly used in cooking? (A) NaCl (B) CaCO₃ (C) NaHCO₃ (D) K₂SO₄ 9. : Which of the following is a natural sweetener derived from plants? (A) Aspartame (B) Saccharin (C) Sucralose (D) Stevia 10. : What substance is used in toothpaste to help prevent cavities? (A) Sodium chloride (B) Fluoride (C) Baking soda (D) Glycerin 11. : Which compound is commonly used in antacids to neutralize stomach acid? (A) Sodium hydroxide (B) Magnesium hydroxide (C) Sulfuric acid (D) Calcium chloride 12. : Which of the following is a common organic solvent used in nail polish remover? (A) Water (B) Acetone (C) Ethanol (D) Glycerin 13. : What is the active ingredient in most household bleach? (A) Hydrogen peroxide (B) Chlorine (C) Sodium hypochlorite (D) Ammonia 14. : Which gas is commonly used to fill balloons and is lighter than air? (A) Oxygen (B) Nitrogen (C) Helium (D) Carbon dioxide 15. : Which type of chemical bond holds the atoms together in a water molecule? (A) Ionic bond (B) Covalent bond (C) Metallic bond (D) Hydrogen bond 16. : What is the main chemical component of vinegar? (A) Citric acid (B) Hydrochloric acid (C) Acetic acid (D) Lactic acid 17. : Which element is essential for the production of hemoglobin in the human body? (A) Iron (B) Calcium (C) Potassium (D) Sodium 18. : What is the primary use of calcium carbonate in daily life? (A) As a food preservative (B) In antacids (C) As a fertilizer (D) In cleaning agents 19. : Which chemical is commonly used as a leavening agent in baking? (A) Baking soda (B) Vinegar (C) Yeast (D) Salt 20. : Which of the following substances is commonly used to remove grease and oil stains? (A) Vinegar (B) Baking soda (C) Ammonia (D) Acetone Related Posts:Chemistry in Everyday Life MCQs in Everyday ScienceHuman body systems and health (e.g., digestion, respiration, circulation) MCQs in Everyday Science [General] MCQs in Everyday Science [General]Biology in Daily Life MCQs in Everyday SciencePhysics in Daily Life MCQs in Everyday ScienceChemical reactions and everyday examples (e.g., cooking, rusting) MCQs in Everyday ScienceLaws of motion and their everyday applications MCQs in Everyday Science