Question

An acid ‘A’ when kept in a metal
vessel remains un-reacted. (1) a. Identify ‘A’
(1) b. Why this acid remains un-reacted with metal surface?
(1)c. Give a condition and the names of metals when ‘A’ can show a reaction with metals​

Answer 1

Answer:

Chemical reaction of iron nail with copper sulphate solution in water. Iron displaces copper ions from an aqueous solution of copper sulphate. It is a single displacement reaction of one metal by another metal. ... Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + Cu (s).