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प्रश्न
What will happen if a strip of zinc is immersed in a solution of copper sulphate?
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उत्तर
If a zinc strip is immersed in a solution of copper sulphate, the blue colour of copper sulphate fades due to the formation of colourless zinc sulphate. The metal, copper, reddish-brown in colour is deposited on the zinc strip.
CuSO4(aq) + Zn(s) → ZnSO4(aq) + Cu(s)
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संबंधित प्रश्न
Metal A has electronic configuration (2, 8, 1) and metal B has (2, 8, 8, 2). Which is more reactive? Why? Identify these metals.
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The reaction of an iron nail with copper sulphate solution is ........... reaction.
(a) Combination
(b) Displacement
(c) Double displacement
(d) Decomposition
A solution of _________________ in water is green in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
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Name two metals which cannot displace hydrogen from dilute acids.
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Out of aluminium, copper, calcium and tin, the most reactive metal is:
(a) aluminium
(b) copper
(c) tin
(d) calcium
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(a) sodium
(b) silver
(c) copper
(d) lead
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(a) Mg
(b) S
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(a) What is the nature of oxide XO?
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CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s)
FeSO4(aq) + Zn(s) → ZnSO4(aq) + Fe(s)
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A zinc plate was kept in a glass container having CuSO4 solution. On examining it was found that the blue colour of the solution is getting lighter and lighter. After a few days, when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and give chemical equation of the reaction involved.
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Write the chemical equation of the above process.
