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 R-OH ROR 3. IUPAC name of C6H5O ( CH3)2 is: 4 – Methyl – 3- hexanone 3 – Methyl cyclohexanone 2,6 – Dimethyl cyclohexanone 2-Methyl-3-Hexanone 4. Phenol is known as: Carbonylic acid Carpolic acid Carbolic acid Carboxylic acid 5. Phenol is more acidic than alcohol because of the following reason: Delocalization of positive charge on the OH group 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 6. The common name of the following aldehyde is; β – chloro – Y – propionaldehyde α – methyl – Y – chloropropinaldehyde β – chloro – a – methyl propionaldehyde β – methyl – a – chloropropionaldehyde 7. Which of the following reagents is used to separate and purify carbonyl and non- carbonyl compounds? BrMgCH3 H2O NaHSO3 HCN 8. Secondary alcohol is the product of reduction of which carbonyl compound? 9. Which of the following is the strongest acid? Propanic acid Nitroethanoic acid Trichloroethanoic acid Flouroethanoic acid 10. Alkyl halides involving –C –X bond breakage and –C –Nu bond formation SN1 SN2 E1 E2 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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