Advertisements
Advertisements
प्रश्न
State your observation when dilute hydrochloric acid is added to sodium thisulphate.
उत्तर
Dilute hydrochloric acid reacts with thiosulphate to produce sulphur dioxide, and yellow sulphur is precipitated.
\[\ce{Na2S2O3 + 2HCl -> 2NaCl + H2O + SO2 + S ↓}\]
APPEARS IN
संबंधित प्रश्न
Write three equations to show that hydrochloric acid acts as an acid.
Write the uses of hydrochIoric acid.
How can you prove that hydrochloric acid contain :
Hydrogen
Fill in the blank:
Aqua-regia is a mixture of ___________ .
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
What wilI you observed when concentrated HCI is added to lead (IV) oxide and warmed ?
State one reason why tap water is not used to prepare a solution of silver nitrate in the laboratory.
In the laboratory preparation of hydrochloric acid, \[\ce{HCl}\] gas is dissolved in water.
- Draw a diagram to show the arrangement used for the absorption of \[\ce{HCl}\] 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 \[\ce{HCl}\] gas when the reactants are:
- Below 200°C
- Above 200°C
The following question is pertaining to the laboratory pertaining hydrogen chloride gas.
State a safety precaution you would take during the preparation of hydrochloric acid.
