How will you bring about the following conversion?

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asked Jan 31 in Class X Science by muskan15 (-1,578 points)

How will you bring about the following conversion?
1. Methane to methyl chloride. 2. Methane to methyl alcohol.
3. Methane to formaldehyde. 4. Methane to formic acid.
5. Ethane to ethyl chloride. 6. Ethane to ethyl alcohol.
7. Ethane to acetaldehyde. 8. Ethane to acetic acid.
9. Ethane to ethene. 10. Ethyne to ethene.
11. Ethene to ethane. 12. Ethyne to ethane.
13. Methane to formic acid. 14. Ethane to Acetic acid.
15. Ethane to hexachioroethane

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1 Answer

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answered Jan 31 by aditya23 Premium (935 points)

1. When a mixture of methane and chlorine in the ratio of 1 : 1 by volume is exposed to diffused sunlight, methyl chloride is formed.
organic-chemistry-icse-solutions-class-10-chemistry-37
2. Methane, is first converted into methyl chloride by chlorination, in the presence of diffused sunlight. Methyl chloride on hydrolysis forms methyl alcohol.
organic-chemistry-icse-solutions-class-10-chemistry-38
3. Methyl alcohol obtained from above is subjected to oxidation with sodium dichromate and dilute sulphuric acid to form formaldehyde.
organic-chemistry-icse-solutions-class-10-chemistry-39
4. Formaldehyde obtained from above, when subjected to oxidation with sodium dichromate and dilute sulphuric acid, forms formic acid.
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4. When equal volumes of ethane and chlorine are exposed to diffused sunlight, they react to form ethyl chloride (monochloro ethane).
organic-chemistry-icse-solutions-class-10-chemistry-41
5. When equal volumes of ethane and chlorine are exposed to diffused sunlight, they form ethyl chloride, which when treated with aqueous solution of potassium hydroxide (KOH), undergoes hydrolysis to form ethyl alcohol.
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6. Ethane is first converted to ethyl chloride by chlorination. Ethyl chloride undergoes hydrolysis, when treated with aqueous solution of potassium hydroxide, resulting in the formation of ethyl alcohol. Ethyl alcohol undergoes oxidation in the presence of sodium dichromate, acidified with dilute sulphuric acid, which provides nascent oxygen and oxidise ethyl alcohol to acetaldehyde (ethanol).
organic-chemistry-icse-solutions-class-10-chemistry-43
7. Acetaldehyde,when-subjected to oxidation with sodium or potassium dichromate and dilute sulphuric Acid, gets oxidized to form acetic acid.
organic-chemistry-icse-solutions-class-10-chemistry-44
8. Ethane on chlorination forms ethyl chloride which when treated with alcoholic KOH, undergoes, dehydro chlorination to form ethene.
organic-chemistry-icse-solutions-class-10-chemistry-45
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