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प्रश्न
Why the alkali is added drop by drop to the salt solution?
उत्तर
If an alkali is added too quickly, then it is easy to miss a precipitate which redissolves in excess alkali.
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संबंधित प्रश्न
Name a strong alkali.
Name two coloured metal ions.
Name the metal hydroxides which are:
Sparingly soluble
In caustic soda solution
Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.
Name: A metallic oxide soluble in excess of caustic soda solution.
Name: Two bases which are not alkalis but dissolve in strong alkalis.
When ammonium hydroxide is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide to give an inky blue solution. Name the cation present in solution B. What is the probable colour of solution B?
What do you see when sodium hydroxide solution is added to zinc sulphate solution, till it is in excess?
Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:
Write the equation for the following reaction :
Zinc oxide is treated with sodium hydroxide solution.
