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प्रश्न
State the effect of adding a small amount of : (a) sodium hydroxide (b) ammonium hydroxide followed by an excess in case to samples of the salt solutions.
Calcium nitrate [ small amount __________ in excess __________ ]
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उत्तर
Calcium nitrate :
a. with sodium hydroxide :
- \[\ce{Ca(NO3)2 ->[NaOH] Ca(OH)2 + NaNO3}\]
- White curdy ppt. is insoluble in excess of NaOH.
b. With ammonium hydroxide :
- \[\ce{Ca(NO3)2 ->[NH4OH] Ca(OH)2 + NH4NO3}\]
- No precipitation of Ca(OH)2 even in excess of ammonium hydroxide.
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संबंधित प्रश्न
Correct the following, if required:
HNO3 is a strong reducing agent.
Correct the following, if required:
Constant boiling nitric acid contains 80% nitric acid by weight.
Correct the following, if required:
Nitric acid remains colourless even when exposed to light.
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A nitrate which on heating decomposes into dinitrogen oxide [nitrous oxide] and steam.
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Aqua regia is a mixture of 3 parts ------------ and one part ------------.
What is meant by the following term?
Aqua regia
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NH3
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Zinc nitrate [ small amount ________ in excess ________]
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Sulphuric acid and Nitric acid (using barium chloride solution)
