Chemistry XII Unit 7 Questions: 48 Time Limit: 48 minutes Passing Score: 60% Start Quiz Chemistry XII Unit 7 Question 1 of 48 What is the IUPAC name of CH3CH2OH? Methanol Ethanol Propanol Butanol What is the IUPAC name of CH3CH(OH)CH3? Propan-1-ol Propan-2-ol Butan-2-ol Pentan-2-ol What is common name of CH3OH? Ethyl alcohol Methyl alcohol or wood spirit Propyl alcohol Isopropyl alcohol What is functional group of alcohols? Hydroxyl group -OH Carbonyl group Carboxyl group Amino group What are primary alcohols? OH on carbon bonded to one other carbon OH on carbon bonded to two other carbons OH on carbon bonded to three other carbons OH on aromatic ring What are secondary alcohols? OH on carbon bonded to one carbon OH on carbon bonded to two other carbons OH on carbon bonded to three carbons OH on benzene ring What are tertiary alcohols? OH on carbon bonded to one carbon OH on carbon bonded to two carbons OH on carbon bonded to three other carbons OH on aromatic ring What are phenols? OH group on saturated carbon OH group directly attached to benzene ring OH group on aliphatic chain Carboxylic acids What is IUPAC name of C6H5OH? Benzene alcohol Phenol Hydroxybenzene Benzenol What is functional group of ethers? Hydroxyl group Ether linkage C-O-C Carbonyl group Amino group What is IUPAC name of CH3OCH3? Dimethyl ether Methoxymethane Ethyl methyl ether Methoxyethane What is common name of CH3OCH2CH3? Methoxypropane Ethyl methyl ether Dimethyl ether Diethyl ether How are alcohols prepared from alkenes? Hydration using H2SO4 and water Oxidation Reduction Substitution How are primary alcohols prepared from aldehydes? Oxidation Reduction using LiAlH4 or NaBH4 Hydration Substitution How are secondary alcohols prepared from ketones? Oxidation Reduction using LiAlH4 or NaBH4 Hydration Elimination What is product when primary alcohol is oxidized? Aldehyde then carboxylic acid Ketone Ether Alkene What is product when secondary alcohol is oxidized? Aldehyde Ketone only Carboxylic acid Ether What happens when tertiary alcohol is oxidized? Gives ketone Gives aldehyde Resistant to oxidation under mild conditions Gives carboxylic acid What is Lucas test used for? Distinguishing primary, secondary and tertiary alcohols Testing for aldehydes Testing for ketones Testing for acids Which alcohol reacts fastest in Lucas test? Primary alcohol Secondary alcohol Tertiary alcohol giving immediate turbidity All react at same rate How is phenol prepared industrially? From cumene hydroperoxide process From benzene directly From toluene From alcohol What is product when phenol reacts with Br2 water? Monobromophenol Dibromophenol 2,4,6-Tribromophenol giving white precipitate No reaction What is product when phenol reacts with dilute HNO3? Nitrobenzene Mixture of ortho and para nitrophenol meta-Nitrophenol No reaction What is product when phenol reacts with concentrated HNO3? Mononitrophenol Dinitrophenol 2,4,6-Trinitrophenol (picric acid) No reaction Why is phenol more acidic than alcohol? Phenoxide ion stabilized by resonance Phenol has more OH groups Phenol is aromatic Alcohol is more stable What is product when phenol reacts with NaOH? Sodium phenoxide plus water No reaction Benzene Ether Do alcohols react with NaOH? Yes readily No, alcohols are not acidic enough Only tertiary alcohols Only primary alcohols What is product when alcohol reacts with Na metal? Sodium alkoxide plus H2 gas No reaction Ether Water How are ethers prepared from alcohols? Williamson synthesis using alkoxide and alkyl halide Direct combination Oxidation Reduction What is another method to prepare ethers? Dehydration of alcohols using concentrated H2SO4 at 413K Oxidation Reduction Hydration What is product when ether reacts with HI? Alcohol and alkyl iodide No reaction Aldehyde Ketone Why do alcohols have higher boiling points than ethers of similar molecular mass? Ethers form hydrogen bonds Alcohols form hydrogen bonds but ethers cannot Both form equal hydrogen bonds Alcohols are heavier Why do alcohols have higher boiling points than alkanes? Alcohols are heavier Alcohols form hydrogen bonds while alkanes have only van der Waals forces Alkanes are polar Alcohols are non-polar What is intramolecular hydrogen bonding? Hydrogen bonding within same molecule Hydrogen bonding between different molecules No hydrogen bonding Ionic bonding Which isomer of nitrophenol shows intramolecular hydrogen bonding? meta-Nitrophenol para-Nitrophenol ortho-Nitrophenol All show equally What is product when alcohol is heated with conc H2SO4 at 443K? Ether Alkene by dehydration Aldehyde Ketone What is product when alcohol is heated with conc H2SO4 at 413K? Alkene Ether by intermolecular dehydration Aldehyde Carboxylic acid What is Kolbe's reaction? Sodium phenoxide plus CO2 under pressure gives salicylic acid Phenol plus Br2 Alcohol plus acid Ether cleavage What is Reimer-Tiemann reaction? Phenol plus CHCl3 and NaOH gives salicylaldehyde Phenol plus Br2 Alcohol oxidation Ether preparation What is product when phenol reacts with zinc dust? Phenoxide Benzene by reduction Benzoic acid No reaction What is product when alcohol reacts with carboxylic acid? Ester plus water Ether Aldehyde Ketone What is common name of CH3CH2OCH2CH3? Dimethyl ether Diethyl ether Ethyl propyl ether Methyl ethyl ether Why is diethyl ether used as anesthetic? Low boiling point and produces unconsciousness High boiling point Non-volatile Water soluble What happens when ether is exposed to air and light? Forms explosive peroxides No reaction Evaporates Forms alcohol What is order of reactivity of alcohols with HX acids? Primary > Secondary > Tertiary Tertiary > Secondary > Primary Secondary > Tertiary > Primary All equal What is test for phenol using FeCl3? Blue color Violet color complex No color Yellow color What is glycerol? Monohydric alcohol Dihydric alcohol Trihydric alcohol propane-1,2,3-triol Ether What is ethylene glycol? Monohydric alcohol Dihydric alcohol ethane-1,2-diol Trihydric alcohol Ether Previous Next Submit Quiz Want to save your progress? Create an account or log in to track your quiz scores! Register/Login