Advertisements
Advertisements
प्रश्न
State one observation for the following:
Concentrated nitric acid is reacted with sulphur.
Advertisements
उत्तर
Concentrated nitric acid is a strong oxidising agent that converts sulphur to sulphuric acid, along with water and nitrogen dioxide.
\[\ce{S + 6HNO3 -> H2SO4 + 2H2O + 6NO2}\]
APPEARS IN
संबंधित प्रश्न
Correct the following, if required:
HNO3 is a strong reducing agent.
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 on heating decomposes into dinitrogen oxide [nitrous oxide] and steam.
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 :
Magnesium gives ------------(O2, H2, NO) with very dilute nitric acid.
Mention three important uses of nitric acid. Give the properties of the nitric acid involved in its use.
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 ________]
Give a balanced equation for the following:
Oxidation of carbon with conc. nitric acid.
