This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is a common reactant in both respiration and combustion? A) Glucose. B) Carbon dioxide. C) Oxygen. D) Water. Show Answer Correct Answer: C) Oxygen. 2. The effectiveness of cleansing action of soap is lower in hard water than in soft water. Which of the following explains the above statement? A) Soap is less soluble in hard water. B) Soap dissociates partially in hard water. C) Soap forms insoluble salt with calcium and magnesium ions of hard water. D) Soap particles form complex ions with Aluminium ion present in hard water. Show Answer Correct Answer: C) Soap forms insoluble salt with calcium and magnesium ions of hard water. 3. What is the primary function of bleaches in cleaning? A) To change the color of fabrics. B) To remove stains and whiten fabrics. C) To thicken the solution. D) To add fragrance. Show Answer Correct Answer: B) To remove stains and whiten fabrics. 4. What is the fat content requirement for filled milk? A) Less than 1.5%. B) Less than 3%. C) Not less than 3%. D) Not less than 8.5%. Show Answer Correct Answer: C) Not less than 3%. 5. Which of the following is an example of a physical property? A) Flammability. B) Density. C) Corrosiveness. D) Toxicity. Show Answer Correct Answer: B) Density. 6. Lead pencil is made up of A) Lead. B) Carbon. C) Iron. D) Copper. Show Answer Correct Answer: B) Carbon. 7. What is the primary role of analytical chemistry? A) Studying the properties of gases. B) Creating new compounds. C) Analyzing the chemical components of samples. D) Studying chemical reactions in living organisms. Show Answer Correct Answer: C) Analyzing the chemical components of samples. 8. What is the range of protein concentration achieved in whey protein concentrate using ultrafiltration technology? A) 10-50%. B) 20-80%. C) 30-90%. D) 40-100%. Show Answer Correct Answer: B) 20-80%. 9. Metal which is present in hand warmers A) Calcium. B) Iron. C) Magnesium. D) Aluminium. Show Answer Correct Answer: B) Iron. 10. Which process is not used for Iron Rusting prevention? A) Galvanizing. B) Nickle Plating. C) Rubbing coke. D) Painting. Show Answer Correct Answer: C) Rubbing coke. 11. Combustion reactions always release enery. What word can be used to describe them? A) Endothermic. B) Exothermic. C) Revisible. D) None of the above. Show Answer Correct Answer: B) Exothermic. 12. A metal which is used in orange street lamps? A) Sodium. B) Potassium. C) All the above. D) None of the above. Show Answer Correct Answer: A) Sodium. 13. Which of the following is example of sulpha drug? A) Salvarsan. B) Ofloxin. C) Tetracycline. D) Prontosil. Show Answer Correct Answer: D) Prontosil. 14. Green coating formed on Bronze statue is called: A) Patina. B) Verdigris. C) Galvanizing. D) None of the above. Show Answer Correct Answer: A) Patina. 15. What is the fat content of skim milk after centrifugation? A) 0.5-2 per cent. B) 5-10 per cent. C) 10-15 per cent. D) 15-20 per cent. Show Answer Correct Answer: A) 0.5-2 per cent. 16. Cement is A) Acidic. B) Basic. C) Neutral. D) None of the above. Show Answer Correct Answer: B) Basic. 17. Once formed this polymer can be heated and reformed over and over again A) Thermoset. B) Thermoplastic. C) Elastomer. D) Kevlar. Show Answer Correct Answer: B) Thermoplastic. 18. A chemical reaction which occurs in your vehicle A) Respiration. B) Oxidation. C) Photosynthesis. D) Combustion. Show Answer Correct Answer: D) Combustion. 19. What substance is responsible for rendering toddy unsuitable for human consumption after fermentation? A) Acetic acid. B) Butyric acid. C) Citric acid. D) Lactic acid. Show Answer Correct Answer: B) Butyric acid. 20. Electronegativity is the ability of each atom in a chemical bond to ..... electrons. A) Attract. B) Divert. C) Divide. D) Reject. Show Answer Correct Answer: A) Attract. 21. Which of the following is an example of a homogeneous mixture? A) Fruit salad. B) Oil and water. C) Saltwater. D) Sand and water. Show Answer Correct Answer: C) Saltwater. 22. When soap is added into a beaker containing hard water, a white precipitate is formed. which of the following ion is responsible of the white precipitate? A) Zn$^{2+}$. B) Pb$^{2+}$. C) Al$^{3+}$. D) Ca$^{2+}$. Show Answer Correct Answer: D) Ca$^{2+}$. 23. What is the fat content requirement for recombined milk? A) Less than 1.5%. B) Less than 3%. C) Less than 8.5%. D) Less than 9%. Show Answer Correct Answer: B) Less than 3%. 24. The sour taste in curd is due to: A) Acetic acid. B) Citric acid. C) Lactic acid. D) Tartaric acid. Show Answer Correct Answer: C) Lactic acid. 25. Stabiliser are added to detergent to A) Remove organic stain. B) Acts as bleaching agent. C) Acts as whitening agent. D) Decrease bubbles in detergent. Show Answer Correct Answer: D) Decrease bubbles in detergent. ← PreviousNext →Related QuizzesClass 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 1Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 2Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 3Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 5Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 6Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 7Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 8Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 9Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 10Class 12 Chemistry (Part Ii) Chapter 16 Chemistry In Everyday Life Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books