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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
State your observation when dilute hydrochloric acid is added to a lead nitrate solution and the mixture is heated.
Give a chemical test to distinguish between the given pairs of chemicals:
Sodium chloride solution and Sodium nitrate solution
Explain why anhydrous HCl is a poor conductor while aqueous HCl is an excellent conductor.
How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?
Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Sodium hydrogen carbonate
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Iron (II) sulphide
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
The ratio between the volumes occupied by 4.4 grams of carbon dioxide and 2 grams of hydrogen gas is ______.
