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प्रश्न
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
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उत्तर
Sodium hydroxide + zinc → hydrogen + sodium zincate
संबंधित प्रश्न
Give reason for the following:
Though hydrogen is lighter than air it cannot be collected by downward displacement of air.
How do different metals displace hydrogen from water? Explain with the help of equations.
Why nitric acid is not used in the preparation of hydrogen?
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A divalent metal
‘Hydrogen is obtained by electrolysis of acidified water’.
Answer the following pertaining to the preparation of hydrogen by electrolysis,
The meaning of the term ‘electrolysis’ and ‘electrolyte’.
Starting from hydrogen gas how would you obtain a neutral liquid.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Aluminium - 2Al + 3H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
State the condition and give balanced equation for the conversion of water gas to hydrogen – in the Bosch process.
