2012
(a) Name - The gas produced on reaction of dilute sulphuric
acid with a metallic sulphide,
(b) Some properties of sulphuric acid are listed below.
Choose the role played by sulphuric acid as A, B, C
or D which is responsible for the reactions (i) to (v).
Some role/s may be repeated.
(A) Dilute acid
(B) Dehydrating agent
(C) Non-volatile acid
(D) Oxidising agent
(i) CuSO4.5H2O
conc.H SO
24, CuSO4 + 5H2O
(ii) S + 2H2SO4 (conc.] → 3502 + 2H2O
(iii) NaNO3 + H2SO4 <200°C
NaHSO4 + HNO3
[conc.)
(iv) MgO + H2SO4 + MgSO4 + H2O
(v) Zn + 2H2SO4 (conc.) → ZnSO4 + SO2 + 2H2O
(c) Give balanced equation for the reaction : Zinc sulphide
and dilute sulphuric acid.
Answers
Explanation:
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4 →ZnSO
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4 →ZnSO 4
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4 →ZnSO 4
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4 →ZnSO 4 +H
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4 →ZnSO 4 +H 2
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4 →ZnSO 4 +H 2
It results in the formation of zinc sulphate and hydrogen sulphide is liberated.ZnS+H 2 SO 4 →ZnSO 4 +H 2 S