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प्रश्न
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Calcium nitrate solution and zinc nitrate solution.
उत्तर
Zinc nitrate solution from calcium nitrate solution :
a.
On further addi tion of NaOH, Zn(OH)2 dissolves.
b.
Ca(OH)2 precipitates are sparingly soluble in excess of sodium hydroxide.
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Name :
a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
