Description : The pair(s) which will show displacement reaction is/are (i) NaCl solution and copper metal (ii) AgNO3 solution and copper metal (iii) Al2(SO4)3 solution and magnesium metal (iv) ZnSO4 solution and iron metal (a) (ii) only (b) (ii) and (iii) (c) (iii) and (iv) (d) (i) and (ii)
Last Answer : (c) (iii) and (iv)
Description : C6H12O6 (aq) + 602(aq) →6CO2(aq) + 6H2O The above reaction is a/an (a) displacement reaction (b) endothermic reaction (c) exothermic reaction (d) neutralisation reaction
Last Answer : Answer: (c)
Description : DOUBLE DISPLACEMENT REACTION
Last Answer : DOUBLE DISPLACEMENT REACTION: Te reactions where a precipitate is formed by exchange of ions between the reactants are known as double displacement reactions.
Description : Reaction of substance X with water is (a) Decomposition reaction (b) Combination reaction (c) Displacement reaction (d) Double displacement reaction
Last Answer : (b) Combination reaction
Description : 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) Aluminum dust
Last Answer : (d) Aluminum dust
Description : 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? (a) Displacement reaction (b) Precipitation reaction (c) Combination ... Only (A) B) Only (B) C) Only (D) D) (B) & (D)
Last Answer : D) (B) & (D)
Description : On immersing gold pins in CuSO 4 solution for few minutes, you will observe (a) displacement reaction (b) the colour of solution fades away (c) the surface of gold pins acquire a black coating (d) No change
Last Answer : (d) No change
Description : Which of the following observations is / are not correct about the given equation: Pb(NO 3 ) 2 (aq) + 2 KI (aq) PbI 2 (s) + 2KNO 3 (aq) (a) PbI 2 is yellow precipitate insoluble in water (b) It is precipitation reaction (c) It is single displacement reaction (d) It is very fast reaction
Last Answer : (c) It is single displacement reaction
Description : Give an example of a double displacement reaction other than the one given in Activity 1.10 -Chemistry-10
Last Answer : Sodium hydroxide and hydrochloric acid react to form sodium chloride and water.
Description : What happens in a halogen displacement reaction?
Last Answer : In a halogen displacement reaction, one halogen displaces another in a compound. Whether or not the reaction occurs depends on the reactivity of the halogens. The order of reactivity is the same as the ... below Cl on the periodic table, so it cannot displace (replace) Cl from the NaCl compound.
Description : Zn + 2 HCl = H2 + ZnCl, is an example of which type of reaction? (1) Double displacement reaction (2) Combination reaction (3) Single displacement reaction (4) Decomposition reaction
Last Answer : (3) Single displacement reaction Explanation: This reaction is an example of single displacement reaction. In Substitution or Single Replacement Reactions, a single free element replaces or is substituted for one of the elements in a compound.