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प्रश्न
Mention three important uses of nitric acid. Give the property of nitric acid involved in the use.
उत्तर
- Nitric acid is used in the purification of silver, gold, platinum, etc., because impurities of other metals are dissolved in it.
- 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.
- Nitric acid is used in the preparation of aqua regia because aqua regia dissolves noble metals.
- To etch designs on copper and brassware, because nitric acid acts as a solvent for a large number of metals except noble metals.
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संबंधित प्रश्न
Correct the following, if required:
\[\ce{HNO3}\] is a strong reducing agent.
Correct the following, if required:
Constant boiling nitric acid contains 80% nitric acid by weight.
Name a nitrate of metal which on heating does not give nitrogen dioxide
Name a nitrate which on heating leaves no residue behind.
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.
What is meant by the following terms?
Aqua Fortis
Name the following:
A nitrate which has no water of crystallization.
Give two tests of the following:
NH3
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 __________ ]
