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प्रश्न
Correct the following, if required:
Nitric acid remains colourless even when exposed to light.
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उत्तर
Nitric acid turns yellow solution when exposed to light.
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संबंधित प्रश्न
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.
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)
What is meant by the following term?
Aqua regia
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 ________]
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)
