Question

Mention the experimental conditions involved in obtaining ethene from ethanol.                (ii) write the chemical equation for the above reaction.         (c) explain the cleansing action of soap.

Answer 1

1. Ethene can be obtained from ethanol by exposing ethanol to a dehydration reaction. In such a situation, ethanol is heated at 170⁰C in the presence of concentrated sulphuric acid to give ethene and water as the products.
2. The chemical equation for the above dehydration reaction is as follows: CH₃CH₂OH + conc. H₂SO₄ → CH₂CH₂ + H₂O
3. CLEANSING ACTION OF SOAP:

• The impurities found in nature are generally categorized as oils and dirt.
• These are organic molecules and do not dissolve in water. Soap molecules are Na and K salts of long-chain carboxylic acids.
• They have a hydrophilic as well as hydrophobic part.
• The hydrophobic part i.e. carbon chain dissolves in oil and the hydrophilic part i.e. ionic part dissolves in water.
• This is the phenomenon of cleansing action of soap.

Answer 2

Answer:

Answer is in the attachment

Explanation:

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