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प्रश्न
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Aluminium - 2Al + 2NaOH + 2H2O → ______ + _______ [g]
2Al + 2KOH + 2H2O → _____ + _____ [g]
उत्तर
Aluminium - 2Al + 2NaOH + 2H2O → 2NaAlO2 + 3H2 [g]
2Al + 2KOH + 2H2O → 2KAlO2 + 3H2 [g]
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संबंधित प्रश्न
Fill in the blank
Hydrogen is ...................soluble in water.
Name the following:
Two metals which give hydrogen with cold water.
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
How do different metals displace hydrogen from water? Explain with the help of equations.
For laboratory preparation of hydrogen, give the following:
materials used
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
Select the correct options for the following statement:
The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Sodium - 2Na + 2H2O → ______+ _______ [g]
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Ca(OH)2 + H2}\]
