(i) What happens when
a) Copper sulphate solution and Zinc granules.
b) Copper sulphate solution and Iron nail.
c) Zinc sulphate solution and Copper turnings.
(ii) Write the word equations for the above mentioned reactions.
Answers
Answer:
Explanation:i)
1.Answer: When zinc granules are kept in copper sulphate solution, the blue colour of copper sulphate disappears and the solution becomes colourless. Zinc is more reactive than copper and hence displaces copper from copper sulphate solution and forms zinc sulphate. ... Hence, copper cannot displace zinc from a compound.
2. When Iron nail (Ferrum) is dipped in Copper sulphate (CuSO4) there takes reaction between them and coppersulphate change its color from blue to light green. ... CuSO4 is in blue Color and FeSO4 is in light green color. So, there will be change in the composition and color of the solution changes from blue to light green.
3. Zinc is more reactive than copper and hence displaces copper from copper sulphate solution and forms zinc sulphate. ... Answer: Copper is less reactive than zinc. Hence, copper cannot displace zinc from a compound. Hence, no reaction takes place when copper turnings are kept in zinc sulphate solution.
ii)In chemistry, a word equation is a chemical reaction expressed in words rather than chemical formulas. A word equation should state the reactants (starting materials), products (ending materials), and direction of the reaction in a form that could be used to write a chemical equation.
Answer:
a)When zinc granules are kept in copper sulphate solution, the blue colour of copper sulphate disappears and the solution becomes colourless. Zinc is more reactive than copper and hence displaces copper from copper sulphate solution and forms zinc sulphate. ... Hence, copper cannot displace zinc from a compound
b)Or Copper is less reactive than Iron. So when an iron nail is dipped in a solution of CuSO4, it displaces copper from the Solution, which gets deposited or precipitated as a red or red-brown residue. ... This happens when all the copper is displaced from the solution of copper sulphate
c)Iron is more electro positive than Copper. Or Copper is less reactive than Iron. So when an iron nail is dipped in a solution of CuSO4, it displaces copper from the Solution, which gets deposited or precipitated as a red or red-brown residue.