Question

the melting point of four metals a,b,c,d are 1500k,1360k,700k,600k respectively. answer the following question based in the given information 1.identify the metals in the increasing order of forces of attraction .2.an alloy of two metals among the above is used for soldering.identify the metals and give reason .​

Answer 1

(i) B is the most reactive metal as it has displaced the most reactive metal amongst the solutions i.e Fe of FeSO4.

(ii) If B is added to CuSO4 solution than it will displace Cu because Fe is more reactive than Cu so the metal which can displace Fe can also displace Cu.

(iii) D < C < A < B.

(iv) Metal D can be used to make containers to store the solutions because it is the least reactive metal of all.