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प्रश्न
Name the chemical in which gold can be dissolved.
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उत्तर
Aqua regia
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.
Choose the correct answer from the options given below:
Which of the following statement is not correct ?
Name the gas evolved when dilute hydrochloric acid is added to: Calcium carbonate
How will you prove that hydrochloric acid contains
- hydrogen
- chlorine?
Write equations for the reactions.
- 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.
Convert Hydrochloric acid to nascent chlorine.
Write an equation for the reaction of hydrochloric acid on:
Manganese (IV) oxide
Complete and balance the following reaction, state whether dilutes or conc. acid is used.
\[\ce{NH4OH + HCl -> }\]
Convert Hydrochloric acid to nascent chlorine.
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
