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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.
State one relevant observation for the following
When hydrogen sulfide gas is passed through lead acetate solution.
Write a balanced equation for the action of dilute hydrochloric acid on sodium sulphide.
Dry hydrogen chloride gas can be collected by ______ displacement of air.
Give a chemical test to distinguish between the given pairs of chemicals:
Sodium chloride solution and Sodium nitrate solution
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
State the use of aqua-regia.
- What must be added to sodium chloride to prepare hydrogen chloride?
- Write the equation for the reaction which takes place in question (a).
Give a chemical test to distinguish between the following pair of compounds:
Hydrogen chloride gas and hydrogen sulphide gas
Write an equation for the reaction of hydrochloric acid on manganese (IV) oxide.
