This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 4 Salts – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 4 Salts Quiz 32 (13 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Acids have soapy texture. True or False? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. The pH of a strong base would be: A) 1-2. B) 5-6. C) 8-9. D) 13-14. Show Answer Correct Answer: D) 13-14. 3. What would be a suitable solution for decorating a greeting card made of turmeric paper? A) Soda water. B) Baking soda solution. C) Vinegar. D) Lemon juice. Show Answer Correct Answer: B) Baking soda solution. 4. Which is the most suitable method for separating the products of the reaction below:NaCl (aq) + AgNO$_{3}$ (aq) $\rightarrow$ AgCl (s) + NaNO$_{3}$ (aq) A) Chromatography. B) Crystallisation. C) Distillation. D) Filtration. Show Answer Correct Answer: D) Filtration. 5. Salt crystal form when a saturated salt solution is cooled down.Hablur salt is produced when the saturated salt solution is cooled. A) TRUE / RIGHT. B) False / wrong. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE / RIGHT. 6. Which of these compounds is an acidic salt? A) Sodium Acetate. B) Potassium Carbonate. C) Ammonium Nitrate. D) Hydrogen Phosphate. Show Answer Correct Answer: C) Ammonium Nitrate. 7. THE ACID PRESENT IN THE CELLS OF ALL HUMAN BEINGS? A) DEOXYRIBONUCLEIC ACID. B) OXY NUCLEIC ACID. C) NUCLEIC ACID. D) NONE. Show Answer Correct Answer: A) DEOXYRIBONUCLEIC ACID. 8. When a drop of vinegar solution is put on the litmus paper, it turns A) Red. B) Blue. C) Green. D) Yellow. Show Answer Correct Answer: A) Red. 9. Which of the following is the product of neutralisation reaction? A) Salt. B) Water. C) Heat. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. Is AgNO$_{3}$ A) Soluble. B) Insoluble. C) All the above. D) None of the above. Show Answer Correct Answer: A) Soluble. 11. Which of these salt is prepared by precipitation reaction? A) Silver chloride. B) Sodium chloride. C) Sodium hydroxide. D) Sodium bissulphate. Show Answer Correct Answer: A) Silver chloride. 12. Choose the correct definition of MINERAL ACIDS. A) Minerals present in the Earth. B) King of chemicals. C) Found in plants and animals. D) Minerals found only in herbs. Show Answer Correct Answer: A) Minerals present in the Earth. 13. Which method is used to prepare silver chloride? A) Add excess solid reactant to acid. B) Titration. C) Precipitation. D) None of the above. Show Answer Correct Answer: C) Precipitation. ← PreviousRelated QuizzesClass 7 Science Chapter 4 Salts Quiz 1Class 7 Science Chapter 4 Salts Quiz 2Class 7 Science Chapter 4 Salts Quiz 3Class 7 Science Chapter 4 Salts Quiz 4Class 7 Science Chapter 4 Salts Quiz 5Class 7 Science Chapter 4 Salts Quiz 6Class 7 Science Chapter 4 Salts Quiz 7Class 7 Science Chapter 4 Salts Quiz 8Class 7 Science Chapter 4 Salts Quiz 9Class 7 Science Chapter 4 Salts Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books