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प्रश्न
Complete the following reactions.
\[\ce{O^{-}2 + H2O ->}\]
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उत्तर
Superoxides react with water and from H2O2 and O2.
\[\ce{O^{-}2 + H2O -> 2OH- + H2O2 + O2}\]
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संबंधित प्रश्न
Potassium carbonate cannot be prepared by Solvay process. Why?
Describe two important uses of each of the following caustic soda.
Describe two important uses of the following sodium carbonate.
What happens when sodium metal is heated in the free supply of air?
State as to why a solution of Na2CO3 is alkaline?
Write a balanced equation for the reaction between Na2O2 and water.
The formula of soda ash is ______.
A chemical A is used for the preparation of washing soda to recover ammonia. When CO2 is bubbled through an aqueous solution of A, the solution turns milky. It is used in whitewashing due to disinfectant nature. What is the chemical formula of A?
When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?
(i) H+ ions
(ii) Mg2+ ions
(iii) Ca2+ ions
(iv) \[\ce{SO^{2-}4}\] ions
Complete the following reactions.
\[\ce{O^{2-}2 + H2O ->}\]
Match the compounds given in Column I with their uses mentioned in Column II.
| Column I | Column II |
| (i) CaCO3 | (a) Dentistry, ornamental work |
| (ii) Ca(OH)2 | (b) Manufacture of sodium carbonate from caustic soda |
| (iii) CaO | (c) Most negative E value among alkali O metals. |
| (iv) CaSO4 | (c) Manufacture of high-quality paper |
| (d) Used in white washing |
Which of the following metal hydroxides does not dissolve in sodium hydroxide solution?
Amongst baking soda, caustic soda and washing soda, carbonate anion is present in ______.
The pair of compounds which cannot exist together in solution is ______.
Which sodium salt will be heated with soda lime to obtain propane?
