Analytical Chemistry Short Ans Concise Class-10 ICSE Chemistry Selina Solutions Chapter-4. We Provide Step by Step Answer of Short Ans Questions of Exercise-4 for ICSE Class-10. The given Solutions is according to the Latest editions. Visit official Website CISCE for detail information about ICSE Board Class-10.
Analytical Chemistry Short Ans Concise Class-10 ICSE Chemistry Selina Solutions Chapter-4
| Board | ICSE |
| Book / Publication | Concise / Selina |
| Subject | Chemistry |
| Class | 10th |
| Writer | Dr SP Singh |
| Chapter-4 | Analytical Chemistry |
| Topics | Short Ans |
| Edition | 2025-2026 |
Short Ans Questions on Analytical Chemistry
Page: 69
Que-1: Name the chloride of a metal which is soluble in excess of ammonium hydroxide. Write equation for the same.
Ans: Zinc chloride (ZnCl2) is soluble in excess of ammonium hydroxide.
Que-2: What happens when ammonia solution is added first drop wise and then in excess to the following solutions:
(i) CuSO4 (ii)ZnSO4 (iii)FeCl3
Write balanced equations for these reactions.
Ans:
(i)
(ii)
(iii) 
Que-3: What do you observe when caustic soda solution is added to the following solution: first a little and then in excess.
(a) FeCl3 ,
(b) ZnSO4,
(c) Pb(NO3)2 ,
(d) CuSO4?
Write balanced equations for these reactions.
Ans:
Que-4: What do you observe when freshly precipitated aluminum hydroxide reacts with caustic soda solution? Give balanced equation.
Ans: When freshly precipitated aluminum hydroxide reacts with caustic soda solution, whitesalt of sodium meta aluminate is obtained.
Al(OH)3 + NaOH –> NaAlO2 + 2H2O (Sodium meta aluminate)
Que-5: What is observed when hot concentrated caustic soda solution is added to
(a) Zinc
(b) Aluminium
Write balanced equations.
Ans:
(a) Zn + 2NaOH→ Na2ZnO2 + H2
(b) 2Al + 2NaOH + 2H2O→ 2Na2AlO2 + 3H2
Que-6: Distinguish by adding: sodium hydroxide solution and ammonium hydroxide solution to
(a) Calcium salt solution and lead salt solution
(b) Lead nitrate solution and zinc nitrate solution
(c) Copper salt solution and ferrous salt solution
(d) Fe(II) salt solution and Fe(III) salt solution
(e) Ferrous nitrate and lead nitrate
Ans:
(a) Sodium hydroxide on reaction with calcium salt gives a milky white precipitate, while that of with lead it gives chalky white precipitate.
(b) Sodium hydroxide and ammonium hydroxide on reaction with lead salt gives brown coloured precipitate, while that of with zinc it forms white gelatin like precipitate.
(c) Sodium hydroxide and ammonium hydroxide on reaction with Copper salt gives pale blue coloured precipitate, while that of with ferrous salt solution it forms dirty green coloured precipitate.
(d)Sodium hydroxide and ammonium hydroxide on reaction with Fe(II) salt gives dirty green coloured precipitate, while that of with Fe(III) salt solution it forms reddish brown insoluble precipitate.
(e) Ammonium hydroxide on reaction with lead nitrate gives a chalky white insoluble precipitate, while that of with ferrous nitrate will not give any precipitation.
Que-7: How will you distinguish lead carbonate and zinc carbonate in solution?
Ans: Lead carbonate is dissolved in dilute nitric acid and then ammonium hydroxide is added to it. A white precipitate is formed which is insoluble in excess.
Zinc carbonate is dissolved in dilute nitric acid and then ammonium hydroxide is added to it. A white precipitate is formed which is soluble in excess.
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