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प्रश्न
How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?
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उत्तर
Sodium thiosulphate reacts with dil. HCl to produce sulphur dioxide gas and precipitates yellow sulphur.
\[\ce{Na2S2O3 + 2HCl → 2NaCl + H2O + SO2 + S↓}\]
Sulphur is not precipitated when sulphites are treated with dil. HCl.
\[\ce{Na2SO3 + 2HCl -> 2NaCl + H2O + SO2 ^}\]
संबंधित प्रश्न
State one relevant observation for given reactions:
Action of dilute Hydrochloric acid on iron (II) sulfide.
Give a chemical test to distinguish between the given pairs of chemicals:
Sodium chloride solution and Sodium nitrate solution
Give three distinct test [apart from using an indicator] you would carry out with solution of HCl to illustrate the typical properties of an acid.
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
Name the following:
Five oxidizing agents that liberated chlorine from concentrated hydrochloric acid.
Name the following:
A chemical in which gold can be dissolved.
Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
What must be added to sodium chloride to prepare hydrogen chloride?
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
