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Question
How would you convert the following compound into benzene?
Ethyne
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Solution
Benzene from Ethyne:
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Match the following reactants in Column I with the corresponding reaction products in Column II.
| Column I | Column II |
| (i) \[\ce{Benzene + Cl2 ->[AlCl3]}\] | (a) Benzoic acid |
| (ii) \[\ce{Benzene + CH3Cl ->[AlCl3]}\] | (b) Methyl phenyl ketone |
| (iii) \[\ce{Benzene + CH3COCl ->[AlCl3]}\] | (c) Toluene |
| (iv) \[\ce{Toluene ->[KMnO4/NaOH]}\] | (d) Chlorobenzene |
| (e) Benzene hexachloride |
On heating the mixture of sodium benzoate and soda-lime, the product obtained is ______.
Preparation of benzene from phenol is:
Benzene reacts with benzoyl chloride to form ______.
Phenol associates in benzene to a certain extent to form a dimer. A solution containing 20 × 10-3 kg of phenol in 1.0 kg of benzene has its freezing point depressed by 0.69 K The fraction of phenol that has dimerised is ______. (Kf for benzene = 5.12 K kg mol-1)
Which one of the following reactions does NOT give benzene as the product?
