This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 1 Chemical Reactions And Equations – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 16 (12 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Hydrated ferrous sulphate is commonly known as ..... A) Blue vitriol. B) Green vitrioll. C) Yellow vitrio. D) Brown vitriol. Show Answer Correct Answer: B) Green vitrioll. 2. New substances formed in a chemical reaction is known as A) Reactants. B) Products. C) All the above. D) None of the above. Show Answer Correct Answer: B) Products. 3. Which of the following would indicate that a chemical reaction has occurred? A) A new element has been created. B) A different substance has formed. C) The total mass has either increased OR decreased. D) The total number of elements has either increased OR decreased. Show Answer Correct Answer: B) A different substance has formed. 4. Which is the oxidising agent in the following reaction?CuO (s) + H$_{2}$ (g) ..... > Cu (s) + H$_{2}$O (l) A) CuO. B) H$_{2}$. C) Cu. D) H$_{2}$O. Show Answer Correct Answer: A) CuO. 5. White precipitate will be formed if we add dilute sulphuric acid to: A) CuSO$_{4 }$Solution. B) NaCl Solution. C) BaCl$_{2 }$Solution. D) Empay 2. 2. E) None of these. Show Answer Correct Answer: C) BaCl$_{2 }$Solution. 6. Consider reaction:S(s) + O$_{2}$ (g) ..... > SO$_{2}$State of SO$_{2}$ in this reaction is A) Solid. B) Liquid. C) Aqueous. D) Gas. Show Answer Correct Answer: D) Gas. 7. What colour is copper sulphate A) Blue. B) Green. C) Brown. D) None of the above. Show Answer Correct Answer: A) Blue. 8. How many molecules of Carbon are in the following formula? 3C$_{2}$H$_{6}$ A) 3. B) 6. C) 12. D) 18. Show Answer Correct Answer: A) 3. 9. During a chemical reaction, atom s ..... A) Can appear. B) Can disappear. C) Get rearranged. D) Stop moving and vibrating. Show Answer Correct Answer: C) Get rearranged. 10. When starting material X is treated with water, it produces Y solution, which is used in white washing is Y, identify the X & Y from the following A) X is quick lime, Y is washing soda. B) X is quick lime, Y is slaked lime. C) X is slaked lime, Y is washing soda. D) X is quick lime, Y is slow lime. Show Answer Correct Answer: B) X is quick lime, Y is slaked lime. 11. Silver article turns black when kept in open for a few days due to formation of A) H2s. B) AgS. C) AGSO4. D) Ag2S. Show Answer Correct Answer: D) Ag2S. 12. Name the substance which is used in black and white photography? A) Silver NItrate. B) Silver Chloride. C) Silver Sulphide. D) Silver Bromide. Show Answer Correct Answer: D) Silver Bromide. ← PreviousRelated QuizzesClass 10 Science Chapter 1 Chemical Reactions And Equations Quiz 1Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 2Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 3Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 4Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 5Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 6Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 7Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 8Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 9Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books