Chemistry
Identify the acid
(i) Which is used for the preparation of non-volatile acid.
(ii) The acid which is prepared by catalytic oxidation of ammonia.
Nitric Acid
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Answer
(i) Nitric acid
S + 6HNO3 ⟶ H2SO4 + 2H2O + 6NO2
(ii) Nitric acid
4NO2 + 2H2O + O2 ⟶ 4HNO3
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Related Questions
Name :
(a) a nitrate of metal which on heating does not give nitrogen dioxide.
(b) a nitrate which on heating leaves no residue behind.
(c) a metal nitrate which on heating is changed into metal oxide.
(d) a metal nitrate which on heating is changed into metal.
(e) a solution which absorbs nitric oxide.
(f) the oxide of nitrogen which turns brown on exposure to air. How is it prepared?
(g) the gas produced when copper reacts with conc. HNO3.
Identify the gas evolved when:
(i) Sulphur is treated with conc. nitric acid.
(ii) A few crystals of KNO3 are heated in a hard glass test tube.
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) A substance which gives off only oxygen when heated.
(b) A substance which on heating decomposes into dinitrogen oxide (nitrous oxide) and steam.
(c) A substance which gives off oxygen and nitrogen dioxide when heated.
(d) A substance which on heating leaves yellow residue.
Completed the table:
Name of process Inputs Equation Output Ammonia + air Nitric acid