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प्रश्न
Fill in the blank
Hydrogen is ..................... than air.
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उत्तर
Hydrogen is lighter than air.
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संबंधित प्रश्न
Multiple Choice Question
Water gas is a mixture of
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
Why are the following metals not used in the lab. preparation of hydrogen?
aluminium
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Correct the following statement:
Hydrogen is separated from CO by passing the mixture through caustic potash solution.
Select the correct options for the following statement:
The metal used as a catalyst in hydrogenation of oils.
Select the correct options for the following statement:
The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Zinc - Zn + H2O → ______+ _______ [g]
State the condition and give balanced equation for the conversion of water gas to hydrogen – in the Bosch process.
