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प्रश्न
What is meant by the following term?
Aqua regia
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उत्तर
It is a mixture of concentrated nitric acid and concentrated hydrochloric acid in proportionof 1:3 (by volume).
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संबंधित प्रश्न
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.
Correct the following, if required:
Nitric acid remains colourless even when exposed to light.
Name a nitrate of metal which on heating does not give nitrogen dioxide.
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
State one observation for the following:
Concentrated nitric acid is reacted with sulphur.
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)
Mention three important uses of nitric acid. Give the properties of the nitric acid involved in its use.
Give two tests of the following:
NH3
