Advertisements
Advertisements
प्रश्न
Complete and balance the equation:
[General method]
Reactions of metals with steam
Zinc - Zn + H2O → ______+ _______ [g]
उत्तर
Zinc - Zn + H2O → ZnO + H2 [g]
APPEARS IN
संबंधित प्रश्न
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
Give a reason for the following:
Zinc granules are used in the lab preparation of hydrogen.
Complete and balance the following reaction.
Al + H2SO4 →_____________ +___________
Give reason:
A candle brought near the mouth of a jar containing hydrogen gas starts burning but is extinguished when pushed inside the jar.
Select the correct options for the following statement:
The acid _____ is not Used in the laboratory preparation of hydrogen, using zinc and an acid.
Name an element whsich reacts violently with water at room temperature.
Complete and balance the equation:
[Industrial Method - Bosch process]
- Step I - Production of water gas -
\[\ce{C + H2O->[1000°C]}\] [____ + ____] - Δ - Step II - Reduction of steam to hydrogen by carbon monoxide
\[\ce{CO + H2 + H2O->[450°C][Fe2O3]}\] _____ + ____ [g] - Step III - Removal of unreacted carbon dioxide and carbon monoxidefrom the above mixture
KOH + CO2 → _________ + ______
CuCl + CO + 2H2O → _______
Account for the following fact:
Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilutes sulphuric acid.
Give a balanced equation for obtaining hydrogen from?
Steam using a trivalent metal
State why hydrogen is not prepared in the laboratory by the action of sodium with cold water.
