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प्रश्न
Mention three important uses of nitric acid. Give the properties of the nitric acid involved in its use.
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उत्तर
- Silver, gold, platinum, and other metals undergo purification through the dissolution of impurities in nitric acid.
- Nitric acid is used as an oxidiser in rocket fuel because it can supply large amounts of oxygen.
- Nitric acid is used in the manufacture of dyes, perfumes, drugs, etc., from coal tar products since nitrobenzene is one of the raw materials of it, which is manufactured from nitric acid.
- The preparation of aqua regia uses nitric acid because it dissolves noble metals.
- Nitric acid acts as a solvent for a large number of metals, except noble metals, making it ideal for etching designs on copper and brassware.
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संबंधित प्रश्न
Correct the following, if required:
NaNO3 gives NO2 and O2 on heating.
Correct the following, if required:
Constant boiling nitric acid contains 80% nitric acid by weight.
From the following list of substances, choose one substance in each case which matches the description given below:
Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate, zinc carbonate.
A nitrate which gives off only oxygen when heated
From the following list of substances, choose one substance in each case which matches the description given below:
Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate, zinc carbonate.
A nitrate which on heating decomposes into dinitrogen oxide [nitrous oxide] and steam.
Fill in the blank:
Aqua regia is a mixture of 3 parts ------------ and one part ------------.
What is meant by the following term?
Aqua Fortis
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 __________ ]
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.
Zinc nitrate [ small amount ________ in excess ________]
Differentiate between the following pair based on the criteria given:
Sulphuric acid and Nitric acid (using barium chloride solution)
Give a balanced equation for the following:
Oxidation of carbon with conc. nitric acid.
