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प्रश्न
What is observed after about 1 hour of adding the strips of copper and aluminium separately to the ferrous sulphate solution filled in two beakers? Name the reaction if any change in colour is noticed. Also, write a chemical equation for the reaction.
उत्तर
\[\ce{Cu(s) + FeSO4(aq) -> No change will take place}\]
Copper is less reactive than Fe, so Cu cannot displace iron from a ferrous sulphate solution.
No reaction will take place.
\[\ce{2Al(s) + 3FeSO4(aq) -> Al2(SO4)3 + 3Fe(s)}\] (Displacement reaction)
When Al is added to a FeSO4(aq) solution, the green colour of FeSO4(aq) disappears and the Fe is seen setting down as the reaction occurs Al being higher in the reacting series displaces the Fe in FeSO4.
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संबंधित प्रश्न
Why does the colour of copper sulphate solution change when an iron nail is kept immersed in it?
What is meant by displacement reaction, Explain with help of one example.
What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.
What happens when a zinc strip is dipped into a copper sulphate solution?
Name the type of reaction involved.
When a black metal compound XO is heated with a colourless gas Y2, then metal X and another compound Y2O are formed. Metal X is red-brown in colour which does not react with dilute acids at all. Gas Y2 can be prepared by the action of a dilute acid on any active metal. The compound Y2O is a liquid at room temperature which can turn anhydrous copper sulphate blue.
(a) What do you think is metal X?
(b) What could be gas Y2?
(c) What is compound XO?
(d) What is compound Y2O?
(e) Write the chemical equation of the reaction which takes place on heating XO with Y2.
(f) What type of chemical reaction is illustrated in the above equation?
Explain the terms with examples.
Displacement reaction
Classify the following reaction into different type:
AgNO3(aq) + NaCl(aq) →AgCl(s) + NaNO3(aq)
A single displacement reaction is represented by X(s) + 2HCl(aq) → XCl2(aq) + H2(g). Which of the following(s) could be X.
(i) Zn
(ii) Ag
(iii) Cu
(iv) Mg.
Choose the best pair.
Complete the following chemical reaction:
\[\ce{CuSO4 (aq) + Pb (s) -> \underline{}\underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}\underline{}}\]
Name the chemical reaction type.
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.
