Advertisements
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Correct the following, if required:
Nitric acid remains colourless even when exposed to light.
Name a nitrate of metal which on heating does not give nitrogen dioxide
Fill in the blank:
------------ (iron / copper) become passive in concentrated nitric acid
State one observation for the following:
Concentrated nitric acid is reacted with sulphur.
Complete the following equations :
3 Cu + dil. HNO3
What is meant by the following term?
Aqua regia
Name the following:
A nitrate which has no water of crystallization.
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 pairs based on the odourless gas which turns lime water milky and the criteria given:
Sulphuric acid and Nitric acid (using barium chloride solution)
