Question

name the impurities involved for the laboratory preparation of hydrogen ​

Answer 1

Answer:

Hydrogen sulphide, sulphur dioxide, oxides of nitrogen, phosphine, arsine, carbon dioxide and water vapour are the impurities present in the hydrogen prepared in the laboratory.

Explanation:

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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.