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प्रश्न
State your observation when dilute hydrochloric acid is added to sodium thiosulphate.
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उत्तर
Thiosulphate and diluted hydrochloric acid combine to form sulphur dioxide, which precipitates yellow sulphur.
\[\ce{Na2S2O3 + 2HCl -> 2NaCl + H2O + SO2 + S ↓}\]
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संबंधित प्रश्न
How can you prove that hydrochloric acid contain :
Hydrogen
Fill in the blank:
A constant boiling mixture of water and hydrochloric acid is also called as _______________.
Name the gas evolved when an oxide and concentrated hydrochloric acid are heated.
Write equation for the reaction between hydrochloric acid of the following: Manganese dioxide
Write equation for the reaction between hydrochloric acid of the following: Oxide of lead
State one reason why tap water is not used to prepare a solution of silver nitrate in the laboratory.
Aqua regia is a mixture of ______.
In the laboratory preparation of hydrochloric acid, HCl gas is dissolved in water.
- Draw a diagram to show the arrangement used for the absorption of HCl gas in water.
- State why such an arrangement is necessary? Give two reasons for the same.
- Write the chemical equation for the laboratory preparation of HCl gas when the reaction is:
- Below 200°C
- Above 200°C
State one appropriate observation of the following:
Concentrated HCl is made to react with mangesediaoxide
State your observation when :
Dilute hydrochloric acid is added to copper carbonate.
