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: 2-Methyl-3-Hexanone 2,6 – Dimethyl cyclohexanone 3 – Methyl cyclohexanone 4 – Methyl – 3- hexanone 4. Phenol is known as: Carboxylic acid Carbonylic acid Carpolic acid Carbolic 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 ring Delocalization of negative charge in the OH group Delocalization of positive charge on the carbon atom in ring 6. The common name of the following aldehyde is; α – methyl – Y – chloropropinaldehyde β – chloro – Y – propionaldehyde β – methyl – a – chloropropionaldehyde β – chloro – a – methyl propionaldehyde 7. Which of the following reagents is used to separate and purify carbonyl and non- carbonyl compounds? HCN NaHSO3 H2O BrMgCH3 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 Flouroethanoic acid Trichloroethanoic acid 10. Alkyl halides involving –C –X bond breakage and –C –Nu bond formation SN1 E2 E1 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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