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प्रश्न
Name: Two coloured ions
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उत्तर
Cu2+, Mn2+
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संबंधित प्रश्न
Choose the most appropriate answer from the following list of oxides which fit the description.
[SO2, SiO2, Al2O3, MgO, CO, Na2O]
A basic oxide.
Name two colourless 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.
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : ZnSO4
What do you observe when caustic soda solution is added to the following solution: first a little and then in excess : Pb(NO3)2
Name a metallic hydroxide soluble in excess of NH4OH.
Name: A metallic oxide soluble in excess of caustic soda solution.
Name : A yellow monoxide that dissolves in hot and concentrated caustic alkali.
Why the alkali is added drop by drop to the salt solution?
