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प्रश्न
State your observation for the following case :
Moist blue litmus is introduced into a gas jar of sulphur dioxide.
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उत्तर
Litmus turns blue to red, and then gets bleached.
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संबंधित प्रश्न
Write balanced chemical equations to show : The oxidizing action of conc. Sulphuric acid on carbon
Quicklime is not used to dry HCl gas because _____.
Give one equation to show the following properties of sulphuric acid:
Dehydrating property
Give two balanced reactions of the type to show the following property of sulphuric acid:
Non-volatile nature
Name the following:
Products obtained by treating ferrous sulphide with dilute sulphuric acid.
Give main difference between drying agent and dehydrating agent.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Iron (II) sulphate from iron.
- Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
- In the contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two-step procedure is used. Write the equations for the two steps involved in D.
- What type of substance will liberate sulphur dioxide from sodium sulphite in step E?
- Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F.
State your observation of the following case:
When dilute hydrochloric acid is added to sodium carbonate crystals.
Give balanced chemical equation to prepare the following salt:
Lead sulphate from lead carbonate
