Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Sodium and potassium with dil. HCl or dil. H2SO4 but reaction is highly explosive and practically not-feasible.
APPEARS IN
संबंधित प्रश्न
Which metal is preferred for the preparation of hydrogen?
from acid?
Complete the following word equation:
Sodium hydroxide + zinc → 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
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
Starting from hydrogen gas how would you obtain a metal by reduction of its heated oxide.
Select the correct options for the following statement:
The product formed on combustion of hydrogen in air is ___.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
