Advertisements
Advertisements
Question
Give two tests of the following:
NH3
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Correct the following, if required:
NaNO3 gives NO2 and O2 on heating.
Correct the following, if required:
Constant boiling nitric acid contains 80% nitric acid by weight.
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
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.
Fill in the blank:
Aqua regia is a mixture of 3 parts ------------ and one part ------------.
Fill in the blank:
------------ (iron / copper) become passive in concentrated nitric acid
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Dilute hydrochloric acid and dilute sulphuric acid. (Using lead nitrate solution)
How does nitric acid formed in the atmosphere?
What is meant by the following term?
Aqua Fortis
Mention three important uses of nitric acid. Give the properties of the nitric acid involved in its use.
