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Question
Write a balanced equation for the reaction between KO2 and water.
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Solution
The balanced chemical equation for the reaction between KO2 and water is:
\[\ce{2KO_{2(s)} + 2H_2O_{(l)} -> 2KOH_{(aq)} + H_2O_{2(aq)} + O_{2(g)}}\]
RELATED QUESTIONS
What are the common chemical features of alkali metals?
Why are alkali metals not found in nature?
Why are lithium salts commonly hydrated and those of the other alkali metal ions usually anhydrous?
For alkali metals, which one of the following trends is incorrect?
Which of the following statements is incorrect?
Metallic elements are described by their standard electrode potential, fusion enthalpy, atomic size, etc. The alkali metals are characterised by which of the following properties?
(i) High boiling point.
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(i) BeSO4
(ii) MgSO4
(iii) BaSO4
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(ii) Beryllium sulphate is readily soluble in water as the greater hydration enthalpy of Be2+ overcomes the lattice enthalpy factor.
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(iv) Beryllium oxide is purely acidic in nature.
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Match List-I with List-II.
| List-I | List-II |
| (Metal) | (Application) |
| (a) Cs | (I) High temperature thermometer |
| (b) Ga | (II) Water repellent sprays |
| (c) B | (III) Photoelectric cells |
| (d) Si | (IV) Bullet proof vest |
Choose the most appropriate answer from the options given below:
A white precipitate was formed when BaCl2 was added to extract of an inorganic salt. Farther, a gas 'X' with characteristic odour was released when the formed white precipitate was dissolved in dilute HCl. The anion present in the inorganic salt is ______.
The metal mainly used in devising photoelectric cells is ______.
The correct order of conductivity of ions in water is ______.
