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Question
Write the word equation when ammonium salt is heated with caustic soda solution.
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Solution
\[\ce{\underset{Ammonium salt}{NH4Cl} + \underset{solution}{\underset{Caustic soda}{NaOH}}->[\Delta]\underset{Sodium chloride}{NaCl} + \underset{Water}{H2O} + \underset{Ammonia gas}{NH3\uparrow}}\]
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RELATED QUESTIONS
Name the chloride of a metal which is soluble in excess of ammonium hydroxide. Write equation for the same.
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(iii) copper salt solution and ferrous salt solution
(iv) Fe (II) salt solution and Fe (III) Salt solution
(v) Ferrous nitrate and lead nitrate
Write equation for the reaction that will take place when copper sulphate solution is added to sodium hydroxide solution.
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Sodium hydroxide solution is added first in a small quantity, then in excess to the aqueous salt solutions of copper (II) sulphate, zinc nitrate, lead nitrate, calcium chloride, and iron (III) sulphate. Copy the following table and write the colour of the precipitate in (i) to (v) and the nature of the precipitate (soluble or insoluble) in (vi) to (x).
| Aqueous salt solution | Colour of precipitate when NaOH is added in a small quantity | Nature of precipitate (soluble or insoluble) when NaOH is added in excess |
| Copper (II) sulphate | (i) | (vi) |
| Zinc nitrate | (ii) | (vii) |
| Lead nitrate | (iii) | (viii) |
| Calcium chloride | (iv) | (ix) |
| Iron (III) Sulphate | (v) | (x) |
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Observe the picture given below and state one observation for the experiment you would notice on mixing the given solution.
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