Which of the following is a displacement reaction?Sodium + chlorine → sodium chlorideLithium + lead nitrate → Lithium nitrate + leadMagnesium + oxygen → magnesium oxideCalcium carbonate → calcium oxide + carbon dioxide2What would you expect to see when zinc is added to copper sulfate solution?The solution turns from colourless to blue and a brown solid is formedNo reactionThe solution turns from blue to colourless and bubbles/fizzing occursThe solution turns from blue to colourless and a brown solid is formed3The order of decreasing reactivity for four metals is potassium, calcium, zinc and copper. Which of the following pairs of metals and solutions will result in a displacement reaction?Calcium plus potassium sulfateCopper plus potassium sulfateZinc plus calcium chloridePotassium plus copper nitrate4What are the products of the reaction of silver oxide with hydrogen?No reaction takes placeSilver plus oxygenSilver plus waterSilver hydroxide
Question
Which of the following is a displacement reaction?Sodium + chlorine → sodium chlorideLithium + lead nitrate → Lithium nitrate + leadMagnesium + oxygen → magnesium oxideCalcium carbonate → calcium oxide + carbon dioxide2What would you expect to see when zinc is added to copper sulfate solution?The solution turns from colourless to blue and a brown solid is formedNo reactionThe solution turns from blue to colourless and bubbles/fizzing occursThe solution turns from blue to colourless and a brown solid is formed3The order of decreasing reactivity for four metals is potassium, calcium, zinc and copper. Which of the following pairs of metals and solutions will result in a displacement reaction?Calcium plus potassium sulfateCopper plus potassium sulfateZinc plus calcium chloridePotassium plus copper nitrate4What are the products of the reaction of silver oxide with hydrogen?No reaction takes placeSilver plus oxygenSilver plus waterSilver hydroxide
Solution
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A displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. In the given options, the reaction "Lithium + lead nitrate → Lithium nitrate + lead" is a displacement reaction. Here, Lithium, being more reactive, displaces Lead from Lead nitrate.
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When zinc is added to a copper sulfate solution, a displacement reaction occurs because zinc is more reactive than copper. The blue solution of copper sulfate turns colorless, and a brown solid (copper) is formed. So, "The solution turns from blue to colourless and a brown solid is formed" is the correct option.
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A displacement reaction will occur if a more reactive metal is added to the solution of a less reactive metal. From the given reactivity series (potassium > calcium > zinc > copper), the pair "Zinc plus calcium chloride" will result in a displacement reaction because Zinc is more reactive than Calcium.
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The reaction of silver oxide with hydrogen is a reduction reaction, where hydrogen reduces silver oxide to silver and water is formed as a by-product. So, "Silver plus water" is the correct answer.
Similar Questions
Explain why this is classified as a single displacement reaction. Refer to what happens to the iron, zinc and sulfate during the reaction.
A displacement reaction is one method for obtaining copper metal from aqueouscopper(II) sulfate.Identify another method for obtaining copper metal from aqueous copper(II) sulfate....................................................................................................................................... [1][Total: 11]It takes place because iron is hghe than copper in the reactivity seres so it is able to displace copperfrom the reactionfe2+CUSO4=Feso4+cu
earning goal 2: Select the option that best completes the sentence. If you add magnesium powder to copper sulfate solution, a single displacement reaction occurs to produce:copper metal onlymagnesium sulfate solution and sulfuric acidmagnesium oxidemagnesium sulfate solution and copper metal
Learning goal 2: Determine which of the following word equations describes a double displacement reaction. magnesium carbonate → magnesium oxide + carbon dioxide gascopper oxide + carbon → copper metal + carbon dioxide gasmagnesium nitrate + sodium hydroxide → magnesium hydroxide + sodium nitratemethane gas + oxygen gas → carbon dioxide gas + water vapour
In a single displacement reaction, any metal that appears above another in the activity series of metals will displace it.TrueFalse
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