Question

Impurities present in hydrogen prepared in laboratory

Answer 1

heya mate here is your answer
HydrogenSulphide,SulphurDioxide, Oxides Of Nitrogen
Phosphine(PH3),CarbonDioxide,
Water Vapour are impurities in hydrogen
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Answer 2

Question-

How can the impurities present in hydrogen prepared in the laboratory be removed?

Answer-

The impurities present in hydrogen prepared in the laboratory are as follows-

• Hydrogen Sulphide
• Sulphur Dioxide
• Oxides Of Nitrogen
• Phosphine (PH₃)
• Carbon Dioxide
• Water Vapour

Crude hydrogen gas containing carbon dioxide and hydrogen sulfide impurities are scrubbed with aqueous liquid triethanolamine solution (C₆H₁₅NO₃) to remove the impurities from the hydrogen gas.

Triethanolamine, or TEA is a viscous organic compound that is both a tertiary amine and a triol. A triol is a molecule with three alcohol groups.