ETEA PAST PAPER 2020 ( PART 5 ) 1. Secondary alkyl halides is: CH3-CI 2. R-X on reaction with alcohols forms: RH R-X-OH ROR R-OH 3. IUPAC name of C6H5O ( CH3)2 is: 3 – Methyl cyclohexanone 2-Methyl-3-Hexanone 4 – Methyl – 3- hexanone 2,6 – Dimethyl cyclohexanone 4. Phenol is known as: Carboxylic acid Carpolic acid Carbolic acid Carbonylic acid 5. Phenol is more acidic than alcohol because of the following reason: Delocalization of negative charge in the OH group Delocalization of positive charge on the carbon atom in ring Delocalization of negative charge in the ring Delocalization of positive charge on the OH group 6. The common name of the following aldehyde is; β – chloro – a – methyl propionaldehyde α – methyl – Y – chloropropinaldehyde β – methyl – a – chloropropionaldehyde β – chloro – Y – propionaldehyde 7. Which of the following reagents is used to separate and purify carbonyl and non- carbonyl compounds? BrMgCH3 H2O HCN NaHSO3 8. Secondary alcohol is the product of reduction of which carbonyl compound? 9. Which of the following is the strongest acid? Trichloroethanoic acid Nitroethanoic acid Propanic acid Flouroethanoic acid 10. Alkyl halides involving –C –X bond breakage and –C –Nu bond formation SN1 E1 E2 SN2 Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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