10th Standard Science Chapter 1 November 26, 2020December 19, 2020wefru 10th Standard Science Chapter 1 Quiz. how much you know or you don’t know, test here. quiz contains only 10 questions there no time limit. 0 Created on November 26, 2020 By wefru 10th Standard Science Chapter 1 CHECK YOUR SKILLS 1 / 14 Q1) Which of the following are exothermic processes? (i) Reaction of water with quick lime(ii) Dilution of an acid(iii) Evaporation of water(iv) Sublimation of camphor (crystals) (a) (i) and (ii) (b) (ii) and (iii) (c) (i) and (iv) (d) (iii) and (iv) Answer 2 / 14 Question 2.A teacher gave two test tubes to the students, one containing water and the other containing sodium hydroxide. She asked them to identify the test tube containing sodium hydroxide solution. Which one of the following can be used for the identification? (a) Blue litmus b) Red litmus (c) Sodium carbonate solution (d) Dilute hydrochloric acid 3 / 14 Question 3.Which of the following is not physical change? (a) Boiling of water to give water vapour (b) Melting of ice to give water c) Dissolution of salt in water d) Combustion of Liquefied Petroleum Gas 4 / 14 Question 4.The following reaction is an example of a4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)(i) displacement reaction(ii) combination reaction(iii) redox reaction(iv) neutralisation reaction (a) (i) and (iv) (b) (ii) and (iii) (c) (i) and (iii) d) (iii) and (iv) 5 / 14 Question 5.Which of the following is true for an unbalanced chemical equation? (a) Number of atoms is equal on both sides of the equation b) Number of atoms is less on the left side of the equation (c) Number of atoms is more on the right side of the equation (d) Both (b) and (c). 6 / 14 Question 6.Which option denotes a double displacement reaction? (a) A + B + C (b) A + B → C (c) AC + BD → AD + BC (d) AC + B → AB + C 7 / 14 Question 7.Which among the following is (are) double displacement reaction(s)?(t) Pb + CuCl → PbCl2 + Cu(ii) Na2SO4 + BaCl2 → BaSO4 + 2NaCl(iii) C + O2 → CO2(iv) CH4 + 2O2 → CO2 + 2H2O (a) (i) and (iv) (b) (ii) only (c) (i) and (ii) (d) (iii) and (iv) 8 / 14 Question 8.The following reaction is used for the preparation of oxygen gas in the laboratory:Which of the following statement about the reaction is correct? (a) It is a decomposition reaction and endothermic in nature. (b) It is a combination reaction. (c) It is a decomposition reaction and accompanied by release of heat. d) It is a photochemical decomposition reaction and exothermic in nature. 9 / 14 Question 9.Which of the following is Not True with respect to the neutralisation reaction? (a) Salt is formed. (b) Reaction occurs between an acid and a base. (c) Reactive element displaces less reactive element. d) Reactants are in gaseous state. 10 / 14 Question 11.Combustion reactions are always (a) Exothermic b) Endothermic (c) Sometimes exothermic (d) Both (a) and (b) 11 / 14 Question 12.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?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) 12 / 14 Question 13.Which one of the following processes involve chemical reactions? a) Storing of oxygen gas under pressure in a gas cylinder (b) Liquefaction of air (c) Sodium carbonate solution (d) Dilute hydrochloric acid 13 / 14 Question 14.In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate? (a) Lead sulphate (insoluble (b) Lead acetate (c) Ammonium nitrate (d) Potassium sulphate 14 / 14 Question 15.In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature? (a) 2H2(l) + O2(l) → 2H2O(g) (b) 2H2(g) + O2(l) → 2H2O(l) (c) 2H2(g) + O2(g) → 2H2O(l) (d) 2H2(g) + O2(g) → 2H2O(g) Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz