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प्रश्न
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Sodium - 2Na + 2H2O → ______+ _______ [g]
उत्तर
Sodium - 2Na + 2H2O → 2NaOH + H2 [g]
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संबंधित प्रश्न
Multiple Choice Question
Water gas is a mixture of
What is noticed if the products are not allowed to escape?
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
Where does hydrogen occur in a free state?
Complete and balance the following reaction.
Mg + H2O →_____________ +___________
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
Starting from hydrogen gas how would you obtain a neutral liquid.
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Zinc - Zn + 2NaOH → ______ + _______ [g]
Zn + 2KOH → ____ + _____ [g]
Account for the following fact:
Potassium and sodium are not used to react with dilute ‘hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
