Advertisements
Advertisements
प्रश्न
For laboratory preparation of hydrogen, give the following:
chemical equation
Advertisements
उत्तर
\[\ce{Zn + 2HCl -> ZnCl2 + H2\uparrow}\]
APPEARS IN
संबंधित प्रश्न
FILL IN THE BLANK
In electrolysis of water, dilute sulphuric acid is added to increase ..................of water.
For laboratory preparation of hydrogen, give the following:
method of collection
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
Give a reason for the following:
Zinc granules are used in the lab preparation of hydrogen.
Correct the following statement:
Hydrogen is separated from CO by passing the mixture through caustic potash solution.
‘Hydrogen is obtained by electrolysis of acidified water’.
Answer the following pertaining to the preparation of hydrogen by electrolysis,
Name the electrode –
- through which the current enters the electrolyte.
- at which hydrogen is liberated.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Magnesium - Mg + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with steam
Iron - 3Fe + 4H2O ⇌ ______+ _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
Give a balanced equation for the following conversion.
\[\ce{CO + H2<-H2O->CO2 + H}\]
