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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
Name a black metallic oxide which reacts with hydrochloric acid to give a coloured solution.
Give reason for the following:
silver nitrate solution can be used to distinguish HCl from HNO3
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
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
Name the gas evolved when dilute hydrochloric acid is added to: Magnesium bicarbonate
- 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.
\[\ce{NA4OH + HCl -> }\]
Complete and balance the following reaction, state whether dilutes or conc. 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.
