Question

an iron nail is placed in solution of copper sulphate the nail is taken out after 10 minutes the nail will be found to be covered with a) brown deposit b) black deposit c) white deposit d) grey deposit

Answer 1

it will be answer A brown deposite

Answer 2

An iron nail is placed in solution of copper sulphate the nail is taken out after 10 minutes the nail will be found to be covered with brown deposit.This brown deposit is of copper.This reaction is a displacement reaction as more reactive iron displaced less reactive copper from its aqueous solution .