Share Facebook Email Telegram WhatsApp Results #1. Which of the following determines that a chemical reaction has not taken place ? Change in size Change in size Evolution of a gas Evolution of a gas Change in colour Change in colour Change in state Change in state #2. In which chemical reaction do bonds or ions exchange between two compounds to form different compounds? Substitution reaction Substitution reaction Dual displacement reaction Dual displacement reaction Redox reaction Redox reaction Direct combination reaction Direct combination reaction #3. Which of the following chemical reactions is always endothermic in nature? Combustion reaction Combustion reaction Decomposition reaction Decomposition reaction Displacement reaction Displacement reaction Combination reaction Combination reaction #4. The chemical reaction in which heat is released is called ________. Exothermic Exothermic Combination Combination Endothermic Endothermic Decomposition Decomposition #5. A reaction in which one or more molecules of a substance are interconnected through a double or triple bond is called ? Esterification Esterification Addition reactions Addition reactions Functional group Functional group Water decomposition or saponification Water decomposition or saponification #6. Which of the following reactions is an example of an endothermic reaction? Dissolution of sodium hydroxide in water Dissolution of sodium hydroxide in water Decomposition of ferrous sulphate Decomposition of ferrous sulphate Dilution of sulphuric acid Dilution of sulphuric acid Burning of natural gas Burning of natural gas #7. What is known as the merging of an acid or alkali in water ? Decomposition reaction Decomposition reaction Exothermic reaction Exothermic reaction Neutral reaction Neutral reaction Endothermic reaction Endothermic reaction #8. ___________ It is a process in which acids and bases combine to form salts and water. Neutralization Neutralization Electrical decomposition Electrical decomposition Distillation Distillation Hydrolysis Hydrolysis #9. Which of the following is an exothermic process ? Sublimation of Camphor Sublimation of Camphor Reaction of water with quick lime Reaction of water with quick lime Evaporation of water Evaporation of water All of the options All of the options #10. The reaction of sodium sulphate and barium chloride solutions is an example of ________. Single displacement reactions Single displacement reactions Exothermic reaction Exothermic reaction Double displacement reaction Double displacement reaction Endothermic reaction Endothermic reaction Finish
