Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 1 - Chapter 1 Chemical Reactions and Equations

Question 187 Exercise

A metal X forms a salt XSO4. The salt XSO4 forms a clear solution in water which reacts with sodium hydroxide solution to form a blue precipitate Y. Metal X is used in making electric wires and alloys like brass.

(a) What do you think metal X could be?

(b) Write the name, formula and colour of salt XSO4.

(c) What is the blue precipitate Y?

(d) Write a chemical equation of the reaction which takes place

When salt XSO4 reacts with sodium hydroxide solution.

Give the state symbols of all the reactants and products which occur in the above equation.


(a) Metal could be Copper, Cu.

(b) XSO4 is Copper sulphate, CuSO4, and it is blue colour.

(c) The blue precipitate Y is Copper hydroxide, Cu(OH)2.

(d) CuSO4 (aq) + 2NaOH (aq) → Cu(OH)2 (s) + Na2S04 (aq)

Connect with us on social media!
2022 © Quality Tutorials Pvt Ltd All rights reserved