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Sia ? 6 years, 3 months ago
To prepare phenol, cumene is first oxidized in the presence of air of cumene hydro-peroxide.

Then, cumene hydroxide is treated with dilute acid to prepare phenol and acetone as by-products.

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Gaurav Seth 6 years, 4 months ago
- French teacher in a school of Alsace
- Dedicated has given 40 years of meritorious service to his school
- Completely identifies with his students and school & town.
- Strict disciplinarian & hard task master.
- Students scared of him if late/unprepared.
- Has a sense of integrity and honesty doesn't blame students entirely for neglect of language
- Confesses that he has been wrong in sending children to water his flowers and giving them off
- Accepts his mistakes - Rare quality
- Is emotional, sensitive-deeply pained at the thought of leaving France and not being able to teach any more.
- The writer gives a sensitive description of Hamel's efforts to absorb his surroundings to etch them in his memory.
- Out of his pain grows a true mentor & ideal teacher who dose't restrict himself to teaching his subject but acts true to his profession by giving a last lesson to his students.That of holding fast to their language
- Their identity which will be their passport to freedom.
- Instills a sense of patriotism in his students by writing Vive Le France on the board.
- Is proud of his language-calls it the most beautiful, clearest language in the world.
- The last lesson by Hamel unites the people of Alsace in their battle against Linguistic Chauvinism.They listen to him with concentration & there is hope that they would become free of foreign rule.
Posted by Pooja Pandey 6 years, 4 months ago
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Gaurav Seth 6 years, 4 months ago
Oxygen is small in size and the lone pair of oxygen repel the bond pairs of O-O bond to larger extent than the lone pairs of sulphur in S-S bond. Sulphur naturally exists in nature as S8 molecules hence on heating this rings break and link jointly in to long chains making it have a greater tendency for catenation than oxygen.
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Charlie who was a 31-year-old man. The story tells that once he was going home from the subway of Grand Central Station in New York
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