ICSE-Xth-CHEMISTRY-TEST_PAPER-AMMONIA AND

ICSE CLASS-X: CHEMISTRY-TEST PAPER
by-UPENDRA K. SHUKLA
AMMONIA & SULPHURIC ACID-1
9971622729, 9968361629
Marks: 40 (Time-1hr)
Question 1
Answer the followinga) How would you distinguish between Zn2+ and Pb2+ using ammonium hydroxide
solution?
b) What property of ammonia is demonstrated by the Fountain Experiment?
c) Write a balanced equation to showi.
Ammonia is a reducing agent.
ii.
Ammonia solution in water is alkaline.
Question 2
Question 3
[2]
[1]
[2]
Name the following:
[5]
In lab, Ammonia is prepared by heating ammonium chloride with compound X.
[5]
a)
b)
c)
d)
e)
A product which is formed when Sulphur trioxide is mixed with conc. sulphuric acid.
A sulphate which is insoluble in water.
The ion other than ammonium ion formed when ammonia dissolves in water.
The gas released when ammonia is heated with CuO.
The drying agent in the lab preparation of Ammonia gas.
a) What is X?
b) Write the balanced equation for the reaction.
c) How is ammonia collected?
Question 4
d) What precaution should be taken during the reaction? Why?
Write balanced chemical equations for the following-
a) The reaction between ammonia and sulphuric acid.
[5]
b) The reaction of excess NH3 with Cl2 gas.
c) The reaction of NH3 with excess Cl2 gas.
d) The reaction of conc. sulphuric acid with Sulphur.
Question 5
e) Catalytic oxidation of ammonia.
Answer the following-
a) What property of ammonia is demonstrated by the Fountain Experiment?
[6]
b) What property of ammonia is demonstrated by Ammonia when excess NH3 is
treated with Cl2 gas?
c) What property of sulphuric acid is demonstrated by the reaction of conc. sulphuric
acid with Sulphur?
d) What property of sulphuric acid is demonstrated by the reaction of conc. sulphuric
acid with metal chlorides?
e) Why is sulphuric acid not prepared by direct dissolution of SO2 in water?
f) Why does Sulphuric acid form two kinds of salts with sodium hydroxide?
1
© 2014 www.allaspirants.com
ICSE CLASS-X: CHEMISTRY-TEST PAPER
Question 6
by-UPENDRA K. SHUKLA
9971622729, 9968361629
Answer the following-
[7]
a) Write a balanced chemical equation to show the Haber’s process with its important
conditions.
b) Write the complete chemical reactions involved in the Contact process.
Question 7
c) How would you show that sulphuric acid is less volatile than nitric acid?
What would you observe when-
a) Carbon is treated with hot and concentrated sulphuric acid.
b) Sodium bisulphite is heated with dil. sulphuric acid.
c) Conc. sulphuric acid is poured into a glass containing sugar crystal.
d) Lead sulphide is treated with dilute hydrochloric acid.
e) Ammonium hydroxide solution is added drop by drop in Copper (II) sulphate
solution then in excess.
f) Ammonium hydroxide is added to Iron(II) sulphate solution.
g) Ammonia is burnt in air.
2
© 2014 www.allaspirants.com

Download Report