Advertisements
Advertisements
प्रश्न
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.
उत्तर
Zinc is more reactive than copper and hence zinc displaces copper from copper sulphate solution to form zinc sulphate solution, which is of green colour, and copper. It is due to formation of the green zinc sulphate solution that the blue colour of copper sulphate gets lighter and lighter.
Zinc from the rod reacts with the solution to form zinc sulphate solution. So the plate has a number of small holes in it.
Zn(s) + CuSO4(aq)→ ZnSO4(aq) + Cu(s)
APPEARS IN
संबंधित प्रश्न
Write equations for the reactions of iron with steam.
Why are metals called electropositive elements whereas non-metals are called electronegative elements?
Name the metal which has been placed at the bottom of the reactivity series.
Complete and balance the following equation:
Na2O + H2O →
Fill in the following blank with suitable word:
The white powder formed when magnesium ribbon burns in oxygen is of ....................
What is the action of water on sodium ? Write equation of the chemical reaction involved.
Write the equation for the reaction of Zinc with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines.
Choose the correct alternative and rewrite the following:
Reaction of iron nails whith copper sulphate solution is an example of _____________________
Rewrite the following statement by selecting the correct option.
A solution of Al2(SO4)3 in water is _____________.
