Question

Match the statement in Column I with statements in Column II

Answer 1

(A) Kipp's apparatus waste (lab method) - $Fe{SO}_4$
Kipp's apparatus waste contains ferrous sulphate with some free sulphuric acid. Free sulphuric acid of Kipp's waster is neutralised with scrap iron forming ferrous sulphate and hydrogen, the latter reduces any ferric ions to ferrous ions.

(B) Green coloured compounds are
${\left({NH}_4\right)}_2{SO}_4\cdot Fe{SO}_4\cdot 6H_{2}O$
$Cu{\left(OH\right)}_2\cdot Cu{CO}_3$
$Fe{SO}_4$
$Cu{Cl}_2\cdot 2H_{2}O$

(C) Following leaves brown residue on heating
${\left({NH}_4\right)}_2{SO}_4\cdot Fe{SO}_4\cdot 6H_{2}O$
$Fe{SO}_4$

(D) Following leaves black residue on heating
$Cu{\left(OH\right)}_2\cdot Cu{CO}_3$