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Distinguish between the given pair of compounds using the test given within brackets: A lead salt and a zinc salt (using excess ammonium hydroxide) - Chemistry

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प्रश्न

Distinguish between the given pair of compounds using the test given within brackets:

A lead salt and a zinc salt (using excess ammonium hydroxide)

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उत्तर

\[\ce{Pb(NO3)2 + 2NH4OH -> \underset{Chalky white ppt.}{Pb(OH)2↓} + 2NH4NO3}\]

Insoluble in excess of NH4OH,

\[\ce{ZnSO4 + 2NH4OH -> \underset{White gelatinous ppt.}{Zn(OH)2↓} + (NH4)2SO4}\]

With the excess of NH4OH ppt. dissolves.

\[\ce{Zn(OH)2 + (NH4)2SO4 + 2NH4OH -> \underset{Tetra amine zinc sulphate}{[Zn(NH3)4]SO4} + 4H2O}\]

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Action of Ammonium Hydroxide on Certain Salt Solutions
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पाठ 4: Analytical Chemistry - Exercise 7 [पृष्ठ ९१]

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फ्रँक Chemistry Part 2 [English] Class 10 ICSE
पाठ 4 Analytical Chemistry
Exercise 7 | Q 2.2 | पृष्ठ ९१
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