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प्रश्न
Name the following:
A chemical in which gold can be dissolved.
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उत्तर
Gold can be dissolved in aqua regia which is mixture of three parts of conoentrated hydrochloric acid and one part of concentrated nitric acid.
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संबंधित प्रश्न
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Name the following:
Drying agent used to dry hydrogen chloride.
Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
Fill in the blank:
On addition of silver nitrate to hydrochloric acid ___________ precipitate is formed which is soluble in ____________
Write observation:
Lead nitrate solution is mixed with dilute hydrochloric acid and heated.
