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प्रश्न
What do you observe when caustic soda solution is added to the following solution, first a little and then in excess:
FeCl3
Write a balanced equation for this reaction.
उत्तर
\[\ce{\underset{\text{yellow}}{FeCl3} + 3NaOH -> \underset{\text{reddish brown, ppt}}{Fe(OH)3↓} + \underset{\text{colourless in solution}}{3NaCl}}\]
In excess of alkali , the reddish brown ppt. of Fe(OH)3 remains insoluble.
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संबंधित प्रश्न
What do you observe when caustic soda solution is added to the following solution, first a little and then in excess:
Pb(NO3)2
Write balanced equation for this reaction.
Distinguish by adding:
(a) sodium hydroxide solution and
(b) Ammonium hydroxide solution to
(i) Calcium salt solution and lead salt solution
(ii) Lead salt solution and ferrous salt solution
(iii) copper salt solution and ferrous salt solution
(iv) Fe (II) salt solution and Fe (III) Salt solution
(v) Ferrous nitrate and lead nitrate
What do you observe when ammonium salt is heated with caustic soda solution?
Name a white, insoluble oxide that dissolves when fused with caustic soda or caustic potash.
Write equation for the reaction that will take place when copper sulphate solution is added to sodium hydroxide solution.
Identify the substance Q based on the information given below:
The white crystalline solid Q is soluble in water. It liberates a pungent smelling gas when heated with sodium hydroxide solution.
State your observation of the following case :
When excess sodium hydroxide is added to calcium nitrate solution
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to lead nitrate solution and zinc nitrate solution.
Distinguish by adding:
Sodium hydroxide solution and ammonium hydroxide solution to ferrous nitrate and lead nitrate.
Write the word equation when ammonium salt is heated with caustic soda solution.
