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प्रश्न
What is meant by the following terms?
Aqua Fortis
उत्तर
Aqua fortis : It is the other name for nitric acid, it is also known as 'strong water'. It was called so because earlier this was the only liquid which could dissolve many metals including silver.
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संबंधित प्रश्न
Correct the following, if required:
\[\ce{HNO3}\] is a strong reducing agent.
Correct the following, if required:
Nitric acid remains colourless even when exposed to light.
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
Fill in the blank:
Aqua regia is a mixture of 3 parts ------------ and one part ------------.
Fill in the blank:
The catalytic oxidation of ammonia to nitric oxide is ------------. (exothermic / endothermic)
process.
Fill in the blank :
Magnesium gives ------------(O2, H2, NO) with very dilute nitric acid.
Complete the following equations :
3 Cu + dil. HNO3
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 __________ ]
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)
