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प्रश्न
Give a chemical test to distinguish between the following gases:
Hydrogen and oxygen
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उत्तर
Hydrogen: Bums with a pale-blue flame when a burning splint is brought near it.
Oxygen: The gas turns an alkaline solution of pyrogallol dark brown.
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संबंधित प्रश्न
Hydrogen is combustible as well as a supporter of combustion.
Give reason for the following:
A pop sound produced when hydrogen is burnt?
Give reason for the following:
Helium replaced hydrogen in weather observation balloons?
Multiple Choice Question
Equal volumes of hydrogen and chlorine are exposed to diffused sunlight to prepare
Multiple Choice Question
Hydrogen is responsible for producing
Multiple Choice Question
Hydrogen is
FILL IN THE BLANK
Hydrogen is present abundantly in the ................
FILL IN THE BLANK
Ammonia is used to make ................
Write the balanced equation and give your observation when the following metal reacts:
Sodium with cold water
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with steam
Give equations for the reactions.
Give balanced equation for the following conversion:
Nitrogen to a basic gas – using hydrogen.
What do the following symbols [or formula] denote : 2H ; H2 ; H+. [two atoms, molecule, ion]
How can you obtain hydrogen from sodium hydroxide [not by electrolysis].
Write correctly the balanced equation for the following:
‘When zinc filings are added to a concentrated solution of sodium hydroxide’.
What do the following symbols represent : 2H and H2.
Describe briefly, with equations, the Bosch Process for the large scale production of hydrogen.
Give balanced equation for obtaining hydrogen from cold water using a monovalent active metal.
Give balanced equation for obtaining hydrogen from cold water using a divalent active metal.
