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प्रश्न
Complete and balance the following reaction.
Ca + H2O →_____________ +___________
उत्तर
Ca + 2H2O → Ca(OH)2 + H2
APPEARS IN
संबंधित प्रश्न
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
Which metal is preferred for the preparation of hydrogen?
from acid?
For laboratory preparation of hydrogen, give the following:
materials used
Choose the correct option:
Elements which show unique nature in the preparation of hydrogen are:
Select the correct options for the following statement:
The product formed on combustion of hydrogen in air is ___.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Aluminium - 2Al + 3H2SO4 → ______+ _______ [g]
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.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
Give a balanced equation for the following conversion.
\[\ce{MgCl2<-HCl->FeCl2}\]
