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प्रश्न
How is hydrogen separated from carbon dioxide and carbon monoxide?
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उत्तर
(i) The products are hydrogen, carbon dioxide and some
unreacted carbon monoxide. Hydrogen is separated from carbon dioxide by passing the mixture through water under pressure, in which carbon dioxide gets dissolved leaving behind hydrogen. Carbon dioxide can also be separated by passing it through caustic potash (KOH) solution.
\[\ce {2KOH + CO2->K2CO3+H2O}\]
(ii) To separate carbon monoxide the gaseous mixture is passed through ammoniacal cuprous chloride in which carbon monoxide dissolves leaving behind hydrogen.
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संबंधित प्रश्न
Indicate which of the following statement is true and which is false:
The hydrogen molecule is monovalent.
Hydrogen is combustible as well as a supporter of combustion.
Indicate which of the following statement is true and which is false:
Hydrogen gas is easily liquefiable.
Multiple Choice Question
Hydrogen is responsible for producing
MULTIPLE CHOICE QUESTIONS
Which is the lightest of all elements?
- hydrogen
- helium
- lithium
- none of these
Write the balanced equation and give your observation when the following metal reacts:
Magnesium with steam
Give reason for the following:
The reaction of chlorine with hydrogen sulphide is deemed a redox reaction.
Name a gas which burns in air or oxygen forming water.
Explain the following:
Two jars of H2 are collected – “one burns quietly and the other does not”.
Give balanced equation for obtaining hydrogen from cold water using a monovalent active metal.
