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प्रश्न
Write balanced equation reaction of sodium hydroxide solution with iron (III) chloride solution.
उत्तर
Adding sodium hydroxide solution dropwise to FeCl3 produces a reddish coloured ppt that is insoluble in excess NaOH.
\[\ce{\underset{\underset{(yellow)}{Ferric chloride}}{FeCl3} + \underset{\underset{(colourless)}{Caustic soda}}{3NaOH} → \underset{\underset{(reddish brown ppt.)}{Ferric hydroxide}}{Fe(OH)3↓} + \underset{\underset{(colourless)}{Sodium chloride}}{3NaCl}}\]
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संबंधित प्रश्न
Name the kind of particles present in sodium hydroxide solution.
Name a yellow monoxide that dissolves in hot and concentrated caustic alkali.
Name a white, insoluble oxide that dissolves when fused with caustic soda or caustic potash.
Using sodium hydroxide solution, how will you distinguish:
Lead hydroxide from magnesium hydroxide.
Write the observation, and balanced equation for the following reaction:
Sodium hydroxide is added dropwise to a solution of zinc sulphate, till it is in excess.
Using Sodium hydroxide solution, how would you distinguish: Ammonium sulphate from sodium sulphate.
Sodium hydroxide solution is added to the solutions containing the ions mentioned in List X. List Y gives the details of the precipitate. Match the ions with their coloured precipitates.
| List X | List Y |
| (i) Pb2+ | (A) Reddish Brown |
| (ii) Fe2+ | (B) White insoluble inexcess |
| (iii) Zn2+ | (C) Dirty green |
| (iv) Fe3+ | (D) White soluble in excess |
| (v) Cu2+ | (E) White soluble in excess |
| (vi) Ca2+ | (F) Blue |
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to lead nitrate solution and zinc nitrate solution.
State one relevant observation for the following:
To the copper nitrate solution, initially, few drops of sodium hydroxide solution is added and then added in excess.
Write the word equation when ammonium salt is heated with caustic soda solution.
