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प्रश्न
Name two colourless metal ions.
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उत्तर १
Na+, Ca2+
उत्तर २
Potassium ion (K+), Sodium ion (Na+)
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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]
An oxide which dissolves in water forming an acid
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Lead nitrate solution is treated with sodium hydroxide solution drop wise till it is in excess.
Give a chemical test to distinguish between the given pair of chemicals:
Lead nitrate solution and zinc nitrate solution.
Name a metallic oxide soluble in excess of caustic soda solution.
Name two coloured metal ions.
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 : CuSO4
Give two examples of amphoteric hydroxides.
Name: A metallic oxide soluble in excess of caustic soda solution.
Choose the correct answer:
The metal oxide which can react with acid as well as alkali is:
