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प्रश्न
Give two tests of the following:
NH3
उत्तर
NH3 : It has a strong pungent smell and turns moist red litmus blue. It can also be tested by bringing a glass rod dipped in conc. HCl in contact with the gas, if the gas is ammonia then it will produce dense white fumes near the glass rod.
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संबंधित प्रश्न
Correct the following, if required:
\[\ce{NaNO3}\] gives \[\ce{NO2}\] and \[\ce{O2}\] on heating.
Correct the following, if required:
Nitric acid remains colourless even when exposed to light.
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 oxygen and nitrogen dioxide 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.
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 terms?
Aqua Fortis
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)
