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प्रश्न
State one appropriate observation of the following:
Action of dilute HCl or sodium sulphite.
उत्तर
Carbon dioxide gas has no effect on acidified KMnO4 or K2Cr2O7, but sulphur dioxide turns potassium permanganate from pink to colourless.
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संबंधित प्रश्न
Explain, why (or give reasons for)
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Outline the steps required to convert hydrogen chloride to anhydrous FeCl3. Write equations for the equations involved.
What wilI you observed when concentrated HCI is added to lead (IV) oxide and warmed ?
Write balanced equation for the following reaction:
Red lead (trilead tetroxide) is warmed with concentrated hydrochloric acid.
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:
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State one appropriate observation of the following:
Which gas is evolved when potassium sulphite with dilute hydrochloric acid.
State your observation when :
Dilute hydrochloric acid is added to copper carbonate.
