Advertisements
Advertisements
प्रश्न
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
Advertisements
उत्तर
Sodium hydroxide + zinc → hydrogen + sodium zincate
संबंधित प्रश्न
Give a reason for the following:
Zinc granules are used in the lab preparation of hydrogen.
Give reason:
A candle brought near the mouth of a jar containing hydrogen gas starts burning but is extinguished when pushed inside the jar.
‘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.
Starting from hydrogen gas how would you obtain a neutral liquid.
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
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.
How did the name ‘hydrogen’ originate? How does hydrogen occur in the combined state?
Give a balanced equation for obtaining hydrogen from?
Steam using a trivalent metal
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{MgO + H2}\]
Give a balanced equation for the following conversion.
\[\ce{NH3<-H2->H2S}\]
