Question

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

Answer 1

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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

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(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.

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Answer 2

Answer:

"(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. "