Question

A non-metal P is burnt in excess of oxygen by which it produces Q . Q cause the phenomena of R when Q is
dissolved in Water due to formation of S. What will be the effect of S on blue and red litmus ? Do the effect
will be same when Rust is in contact with Litmus ? Identify P,Q,R ,S and write the accompanying reaction

Answer 1

Answer:

Chemical reaction of iron nail with copper sulphate solution in water. THEORY. Iron displaces copper ions from an aqueous solution