261.Complete each synthesis by giving missing starting material, reagent or products.
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262.Complete each synthesis by giving missing starting material, reagent or products.
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263.Complete each synthesis by giving missing starting material, reagent or products.
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264.Complete each synthesis by giving missing starting material, reagent or products.
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265.Give plausible explanation for each of the following: Cyclohexanone forms cyanohydrin in good yield but 2, 2, 6-trimethyl cyclohexanone does not.
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266.Give plausible explanation for each of the following:
There are two –NH2 groups in semicarbazide. However, only one is involved in the formation of semicarbazones.
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267.Give plausible explanation for each of the following: During the preparation of esters from a carboxylic acid and an alcohol in the presence of an acid catalyst, the water or the ester should be removed as fast as it is formed.
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268.Explain the following:
p-Hydroxy benzaldehyde is more soluble in water than o-hydroxy benzaldehyde.
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269.Explain the following: Benzaldehyde does not undergo aldol condensation whereas acetaldehyde does.
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270.Explain the following with one suitable example in each case:
Short Answer Type
