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प्रश्न
Name the metal hydroxides which are :
(a) Insoluble (b) Soluble in
(i) Caustic soda solution (ii) Ammonium hydroxide solution.
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उत्तर
|
Name of solution |
Soluble metal hydroxides |
Insoluble metal hydroxides |
|
Caustic soda solution |
Zn(OH)2 Pb(OH)2 |
Fe(OH)3 |
|
Ammonium hydroxide solution |
Zn(OH)2 Cu(OH)2 |
Fe(OH)3 Fe(OH)2 |
संबंधित प्रश्न
State one relevant observation for the following.
Lead nitrate solution is treated with sodium hydroxide solution dropwise till it is excess.
Name a weak alkali.
Name a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : Pb(NO3)2
What do you understand by amphoteric oxide? Give the balanced equations for the reaction with three different amphoteric oxides with a caustic alkali. Write your observation if any.
Name: Two coloured ions
Fill in the blank.
To distinguish soluble salts of zinc and lead ______ [NaOH / NH4OH]can be used.
Choose the correct answer from the options given below :
Metal + alkali → salt + _________
Why the alkali is added drop by drop to the salt solution?
