This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 1 Chemical Reactions And Equations – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 1 Chemical Reactions And Equations Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following statements about the given reaction are correct?3Fe(s) + 4H2O(g) $\rightarrow$ A) (i), (ii) and (iii). B) (iii) and (iv). C) (i), (ii) and (iv). D) (ii) and (iv). Show Answer Correct Answer: C) (i), (ii) and (iv). 2. Which of the following statements about the given reaction are correct?3Fe$_{(s)}$ + 4H$_{2}$O$_{(g)}$ \textregistered Fe$_{3}$O$_{4(s)}$ + 4H$_{2(g)}$(i) Iron metal is getting oxidised(ii) Water is getting reduced(iii) Water is acting as reducing agent(iv) Water is acting as oxidising agent A) (i), (ii) and (iii). B) (iii) and (iv). C) (i), (ii) and (iv). D) (ii) and (iv). Show Answer Correct Answer: C) (i), (ii) and (iv). 3. Which among the following statement(s) is(are) true? Exposure of silver chloride to sunlight for a long duration turns grey due to(i) the formation of silver by decomposition of silver chloride(ii) sublimation of silver chloride(iii) decomposition of chlorine gas from silver chloride(iv) oxidation of silver chloride A) (i) only. B) (i) and (iii). C) (iii) and (iii). D) (iv) only. Show Answer Correct Answer: B) (i) and (iii). 4. What is the actual formula of Ferrous Sulphate? A) FeSO4. B) FeSO4. 5H2o. C) Fisu 4.Havo. D) FeSO4. 10H2O. Show Answer Correct Answer: C) Fisu 4.Havo. 5. In reaction between Fe and CuSO$_{4, }$Cu will displace Fe. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 6. Rusting of iron is a physical change. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 7. Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved?(i) Displacement reaction (ii) Precipitation reaction (iii) Combination reaction (iv) Double displacement reaction A) (i) only. B) (ii) only. C) (iv) only. D) (ii) and (iv). Show Answer Correct Answer: D) (ii) and (iv). 8. The displacement reaction between iron (III) oxide and a metal X is used for welding the rail tracks. Here X is: A) Copper granules. B) Magnesium ribbon. C) Sodium pellets. D) Aluminium dust. Show Answer Correct Answer: D) Aluminium dust. 9. If an element is diatomic it should have a subscript of ..... A) 2, always. B) 2, only when it is by itself. C) It shouldn't have a subscript, it should have a coefficent. D) None of the above. Show Answer Correct Answer: B) 2, only when it is by itself. 10. True Or False:All double displacement reaction produce a precipitate. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. Combination of Zinc and hydrochloric acid to form zinc chloride and hydrogen is: A) Exothermic Reaction. B) Endothermic Reaction. C) None of these. D) None of the above. Show Answer Correct Answer: A) Exothermic Reaction. 12. MnO$_{2 }$+ 4HCl ..... > MnCl$_{2 }$+ 2H$_{2}$O + Cl$_{2}$ Identify the substance oxidised in the above reaction A) Mcl $ _ {2} $. B) HCl. C) H$_{2}$O. D) MnO$_{2}$. Show Answer Correct Answer: B) HCl. 13. In the equation, NaOH + HNO$_{3}$ ..... > NaNO$_{3}$ + H$_{2}$O nitric acid is acting as- A) An Oxidising agent. B) An acid. C) A nitrating agent. D) A dehydrating agent. Show Answer Correct Answer: B) An acid. 14. CaCO$_{3}$ represents a chemical A) Symbol. B) Formula. C) Subscript. D) Reaction. Show Answer Correct Answer: B) Formula. 15. CH$_{3}$OH is called A) Methane hydroxide. B) Methyl hyroxide. C) All the above. D) None of the above. Show Answer Correct Answer: B) Methyl hyroxide. 16. Is the equation balanced?:2H$_{2}$O + O$_{2}$ ..... > 4MgO + 3Fe A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 17. 2 No $ _ {2} $ ..... > 2 or $ _ {2} $ + N $ _ {2} $ A) Synthesis. B) Decomposition. C) Single displacement. D) Double displacement. Show Answer Correct Answer: B) Decomposition. 18. Which of the following processes involve chemical reactions A) Storing of oxygen gas under pressure in a gas cylinder. B) Liquification of air. C) Keeping petrol in a china dish in open. D) Heating copper wire in the presence of air at high temperature. Show Answer Correct Answer: D) Heating copper wire in the presence of air at high temperature. 19. Which of the following statements about the given reaction are correct?3Fe (s) + 4H$_{2}$O (g) $\rightarrow$ Fe$_{3}$O$_{4}$ (s) + 4 H$_{2}$ (g)(i) Iron metal is getting oxidised(ii) Water is getting reduced(iii) Water is acting as reducing agent(iv) Water is acting as oxidising agent A) (i), (ii) and (iii). B) (i) and (iv). C) (i), (ii) and (iv). D) (ii) and (iv). Show Answer Correct Answer: C) (i), (ii) and (iv). 20. Which of the following statements about the given reaction are correct:3Fe (s) + 4H$_{2}$O (l) ..... > Fe$_{3}$O$_{4}$ (s) + 4H$_{2}$ (g) A) Iron metal is getting oxidised. B) Water is getting reduced. C) Water is acting as an oxidising agent. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. Which information is not conveyed by a balanced chemical equation? A) Physical states of reactants and products. B) Symbols and formulae of all the substances involved in a particular reaction. C) Number of atoms/molecules of the reactants and products formed. D) Whether a particular reaction is actually feasible or not. Show Answer Correct Answer: D) Whether a particular reaction is actually feasible or not. 22. Which of the following procedures would provide evidence for the law of conservation? A) Weigh the reactants, conduct the reaction in an open container, and weigh the products. B) Weigh the reactants, conduct the reaction in a sealed container, and weigh the products. C) Measure the volumes of the reactants, conduct the reaction in a sealed container, and measure the volume of the products. D) Write the chemical formulas for the reaction and balance it. Show Answer Correct Answer: B) Weigh the reactants, conduct the reaction in a sealed container, and weigh the products. 23. The idea that matter is neither created nor destroyed in chemical reactions is known as the: A) The idea that matter is neither created nor destroyed in chemical reactions is known as the:. B) Law of conservation of energy. C) Law of conservation of mass. D) Second law of thermodynamics. Show Answer Correct Answer: C) Law of conservation of mass. 24. Which of the following represents a redox reaction? A) NaOH + HCl + HCl + H2O. B) BaCl2 + H2SO4 $\rightarrow$ BaSO4 + 2HCl. C) Zno + C $\rightarrow$ Zn + CO. D) CUSO4 + 2H2O $\rightarrow$ Cu (OH) 2 + H2SO3. Show Answer Correct Answer: C) Zno + C $\rightarrow$ Zn + CO. 25. Balance this equation ..... Al + ..... HCl ..... > ..... H$_{2 }$+ ..... AlCl$_{3}$ A) 2, 6, 3, 2. B) It's already balanced. C) 4, 12, 3, 4. D) 2, 1, 4, 5. Show Answer Correct Answer: A) 2, 6, 3, 2. ← PreviousNext →Related 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