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प्रश्न
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Mangenese dioxide and copper (II) oxide. (using concentrated HCl)
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उत्तर
MnO2 with conc. HCl gives Cl2 gas where as Cu2O does not.
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संबंधित प्रश्न
Calcium oxide and phosphorous pentoxide are very good drying agents but they are not used to dry HCI gas. Give reasons for each.
Name the gas evolved when dilute hydrochloric acid is added to: Zinc Metal
Name the gas evolved when dilute hydrochloric acid is added to: Sodium sulphite
Give a balanced equation when dilute hydrochloric acid is added to : Sodium sulphite
How will you identify?
Chlorine gas
- Give only one suitable chemical test to identify the following gases.
- Ammonia
- Sulphur dioxide
- Hydrogen chloride
- Chlorine
- Carbon dioxide
- Oxygen
- Hydrogen
- Select a basic gas mentioned in Q. (a). How is the basic nature suspected?
- Select acidic gases from the gases mentioned in Q. (a). How is the acidic nature suspected?
- The two gases A and B are bleaching agents. A is greenish-yellow and bleaches due to its oxidizing property while B is a colourless gas that bleaches due to reduction. Identify A and B?
- Which gas turn blue cobalt chloride paper light pink? Give one similarity in the test between
- Cl2 and HCl
- SO2 and CO2.
Complete and balance the following reaction, state whether dilute or cone. acid is used.
\[\ce{NH4OH + HCl ->}\]
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
Complete and balance the following reaction, state whether dilute or cone. acid is used.
\[\ce{NH4OH + HCl->}\]
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCI->}\]
