Q. No. 4 Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives o cresol p cresol 2, 4 dihydroxy tolu
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1 Q. No. 1 Glycerine has One primary and two secondary OH groups One secondary and two primary OH groups Three primary OH groups Three secondary OH groups Q. No. 2 The structural formula of cyclohexanol is Cyclohexanol saturated cyclic alcohol OH group directly attached to the cyclohexane ring.
2 Q. No. 4 Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives o cresol p cresol 2, 4 dihydroxy toluene Benzyl alcohol Q. No. 5 Which of the following reagents convert the propene to 1 propanol H 2 O, H 2 SO 4 Aqueous KOH MgSO 4, NaBH 4 /H 2 O B 2 H 6, H 2 O 2, OH Anti markovnikov product Q. No. 6 Ethylene reacts with Baeyer s reagent to give Ethane Ethyl alcohol Ethylene glycol None of these Bayer's: cold. Alk.KMnO gives Cls diols when reacts with alkene 4
3 Q. No. 7 Propan 1 ol can be prepared from propene by alcohol H 2 O/H 2 SO 4 Hg(OAc) 2 /H 2 O followed by NaBH 4 B2H6 followed by H 2 O 2 CH 3 CO 2 H/H 2 SO 4 Given by BH3/H2O2/OH only (electrophilic addition) Q. No. 8 Oxymercuration demercuration reaction of 1 methylcyclohexene gives trans 2 methyl cyclohexanol cis 2 methyl cyclohexanol 1 methyl cyclohexanol mixture of cis and 2 methyl cyclohexanol Q. No. 9 The product of the following reaction is 2 pentanol pentane pentan 2 one 1 pentanol Anti markovnikov s product
4 Q. No phenylethanol may be prepared by the reaction of phenylmagnesium bromide with HCHO CH 3 COCH 3 CH 3 CHO Q. No. 11 The alcohol that produces turbidity immediately with ZnCl 2 + conc. HCl at room temperature 1 hydroxybutane 2 hydroxybutane 2 hydroxy 2 methylpropane 1 hydroxy 2 methylpropane Zncl 2 + HCl Luca's reagent H form turbidity with 3 0 alcoholimmediately, as 3 0 alcohol forms stable carbocation (C + ) From the given options Q. No. 12 During dehydration of alcohols to alkenes by heating with conc. H 2 SO 4 the initiation step is Protonation of alcohol molecule Formation of carbocation Elimination of water Formation of an ester Dehydration alcohols, first OH is protonated, as protonation makes
5 Q. No. 13 In the following series of chemical reactions, identify Z Conc. H2SO4 Br2 Excess of C Alc. KOH C H OH X Y Z Q. No. 14 Lucas test is used for Alcohols Amines Diethyl ether Glacial acetic acid ZnCl 2 + Conc. HCl Luca s reagent used to distinguish the alcohols Q. No. 15 Compounds A reacts with PCl 5 to give B which on treatment with KCN followed by hydrolysis gave propanoic acid as the product. What is A Ethane Propane Ethyl chloride Ethyl alcohol
6 Q. No. 17 HBr reacts fastest with 2 Methylpropan 1 ol 2 Methylpropan 2 ol Propan 2 ol Propan 1 ol 3 0 alcohol is more reactive in substitution reactions, as if forms stable carbonation (3 0 ) order of reactivity in substitution Q. No. 18 ZnCl For the reaction, C H OH + HX C2H5X + H2 O the order of reactivity is HBr > HI > HCl HI > HCl > HBr HI > HBr > HCl HCl > HBr >HI HI HBr HCl order of reactivity in substitution reaction : Strong acid, easily gives H + Q. No. 19 What is Z in the following sequence of reactions? CH 3 CH 2 CH 2 OH CH 3 CHOHCH 3 (CH 3 CH 2 ) 2 (CHOH) CH 3 CH = CH 2 PCl5 Alc.KOH i) Conc.H2SO4 ii) H2O;boil Z X Y Z Q. No. 20 Methanol is industrially prepared by Oxidation of CH 4 by steam at C Reduction of HCHO using LiAlH 4 Reaction HCHO with a solution of NaOH Reduction of CO using H 2 and ZnO Cr2 O3 at C extreme T, not favoured LiAIH 4 X HCHO too reactive uncontrolled
7 NaOH HCHO CH OH + HCOO Na 3 Bi. product Q. No. 21 Victor meyer s test is not given by (CH 3 ) 3 COH C 2 H 5 OH (CH 3 ) 2 CHOOH CH 3 CH 2 CH 2 OH 0 Victormayer test 1 Red colour (+ve) 0 2 Blue colour (+ve) 0 3 No colour ( ve) Q. No. 22 An organic compound A reacts with sodium metal and forms B. On heating with conc. H 2 SO 4, A gives diethyl ether. A and B are respectively C 2 H 5 OH and C 2 H 5 ONa C 3 H 7 OH and C 3 H 7 ONa CH 3 OH and CH 3 ONa C 4 H 9 OH and C 4 H 9 ONa Q. No. 23 Conc., H 2 SO 4 reacts with C 2 H 5 OH at C to form CH 3 COCH 3 CH 3 COOH CH 3 CHO C 2 H 4
8 Q. No. 24 Isopropyl alcohol heated at C with copper catalyst to form Acetone Dimethyl ether Acetaldehyde Ethane Q. No. 25 Ethylene may be obtained by dehydration of which of the following with concentrated H 2 SO 4 at C C 2 H 5 OH CH 3 OH CH 3 CH 2 CH 2 OH (CH 3 ) 2 CHCH 2 OH Q. No. 26 Which of the following vapours passed over heated copper to form acetone 0 cu/300 2 alcohol 0 C ketone Q. No. 27 The compound which gives the most stable carbonium ion on dehydration is
9 3 0 alcohol can form 3 0 C + Q. No. 28 Alcohols react with Grignard reagent to form Alkanes Alkenes Alkynes All of these Grignard reagent with any proton Source Alkane Q. No. 29 Which of the following will not react with NaOH C 2 H 5 OH CH 3 CONH 2 CH(CN) 3 Weakly acidic NaOH Moderately basic Q. No. 30 Amongst the following, HBr reacts fastest with Propane 1 ol Propane 2 ol 2 methyl propane 1 ol 2 methyl propane 2 ol 3 0 alcohol is more reactive in substitution reactions, as if forms stable carbonation (3 0 ) order of reactivity in substitution
10 Q. No. 31 Ethyl alcohol is heated with conc. H 2 SO 4. The product formed is C 2 H 6 C 2 H 4 C 2 H 2 Q. No. 32 Which will dehydrate most easily 3 methyl 2 butanol Ethyl alcohol 2 methyl propane 2 ol 2 mehyl butan 2 ol 3 0 alcohol easy more reactive in dehydration as it from 3 0 carbocation (more stable) reactivity order of alcohols in dehydration : Q. No. 33 The best method to prepare cyclohexene from cyclohexene is by using Conc. HCl + ZnCl 2 Conc. H 3 PO 4 HBr Conc. HCl In the case of a, b, and d substitution takes place.
11 Q. No. 34 An organic compound A reacts with methyl magnesium iodide, to form an addition product which on hydrolysis forms the compounds B. Compound B gives blue colour salt in victor Meyer s test. The compounds A and B are respectively acetaldehyde and isopropyl alcohol acetone and isopropyl alcohol acetaldehyde and tertiary butyl alcohol acetaldehyde and ethyl alcohol Victor Compound B blue Mayer B 2 0 alcohol Except formaldehyde (HCHO) all aldehydes give 2 0 alcohol Q. No. 35 What is the major product of the following reaction?
12 Q. No. 36 In the following reaction A is C 2 H 5 CH 2 CHO C 2 H 5 CH 2 CH 2 OH C 2 H 5 CH 2 OH C 2 H 5 CHO Q. No. 37 Ether is obtained from ethyl alcohol in presence of H 2 SO 4 at 413 K in presence of H 2 SO 4 at 474 K in presence of H 2 SO 4 at 383 K in presence of H 2 SO 4 at 273 K Q. No. 38 Diethyl ether absorbs oxygen to form Red coloured sweet smelling compound Acetic acid Ether suboxide Ether peroxide
13 Q. No. 39 An ether is more volatile than an alcohol having the same molecular formula. This is due to Dipolar character of ethers Alcohols have resonating structures Inter molecular hydrogen bonding in ethers Inter molecular hydrogen bonding in alcohols Intermolecular H bonding increases B.P. No H bonding in Ethers Q. No. 40 The compound which does not react with sodium is C 2 H 5 OH CH 3 COOH Q. No. 41 Product C in the following reaction, will be aq.naoh Na CH3I C H Br A B C 2 5 Ethane Ethyl methyl ether Ethyl iodide Propane
14 Q. No. 42 In the following A is C 2 H 5 CH 2 CHO C 2 H 5 CH 2 CH 2 OH C 2 H 5 CH 2 OH C 2 H 5 CHO Q. No. 43 Which of the following product is formed, when ether is exposed to air Oxide Alkanes Alkenes Peroxide of diethyl ether Q. No. 44 Diethyl ether is heated with one mole of HI, which is formed Ethyl alcohol and ethyl iodide Ethyl iodide only Ethyl alcohol only Ethyl iodide and ethane
15 Q. No. 45 On boiling with concentrated hydrobromic acid, phenyl ethyl ether will yield Phenol and ethyl bromide Bromobenzene and ethanol Phenol and ethane Bromobenzene ethane Phenoxide ion is more stable Q. No. 46 RCHOHR R 2 CHCH 2 OH RCHOHCH 3 RCH 2 CH 2 OH Q. No. 47 Diethyl ether absorbs oxygen to form Red coloured sweet smelling compound Acetic acid Ether suboxide Ether peroxide
16 Q. No. 48 On boiling with concentrated hydrobromic acid, phenyl ethyl ether will yield Phenol and ethyl bromide Phenol and ethane Bromobenzene and ethanol Bromobenzene and ethane Q. No. 49 Q. No. 50 The ether that undergoes electrophilic substitution reactions is CH 3 OC 2 H 5 C 6 H 5 OCH 3 CH 3 OCH 3 C 2 H 5 OC 2 H 5
17 Q. No. 51 The products formed in the following reaction C 6 H 6 and CH 3 OI Q. No. 52 Which of the following reaction is correctly represented
18 Q. No. 53 An organic compound of molecular formula C 4 H 10 O does not react with sodium. With excess of HI, it gives only one type of alkyl halide. The compound is 1 butanol ethoxyethane 1 methoxypropane 2 methoxypropane it is an ether Q. No. 54 Ortho nitrophenol is steam volatile whereas para nitrophenol is not. This is due to Intramolecular hydrogen bonding present in ortho nitrophenol Intermolecular hydrogen bonding Intramolecular hydrogen bonding present in para nitrophenol None of these Intramolecular A bonding decreases the B.P Q. No. 55 Phenol is less acidic than Acetic acid p nitrophenol Both (1) and (2) None of these Carboxylic acids are more acidic than phenols EWG having phenols are more acidic than phenol ERG having phenols are more acidic than phenol
19 Q. No. 56 Phenol is less acidic than Ethanol Methanol o nitrophenol p methylphenol Carboxylic acids are more acidic than phenols EWG having phenols are more acidic than phenol ERG having phenols are more acidic than phenol Q. No. 57 The increasing order of acidity among phenol, p methylphenol, m nitrophenol and p nitrophenol is m nitrophenol, p nitrophenol, phenol, p methylphenol p methylphenol, m nitrophenol, phenol, p nitrophenol p methylphenol, phenol, m nitrophenol, p nitrophenol phenol, p methylphenol, p nitrophenol, m nitrophenol Q. No. 58 Increasing order of acid strength among p methoxyphenol, p methylphenol and p nitrophenol is p Nitrophenol, p Methoxyphenol, p Methylphenol p Methylphenol, p Methoxyphenol, p Nitrophenol p Nitrophenol, p Methylphenol, p Methoxyphenol p Methoxyphenol, p Methylphenol, p Nitrophenol
20 Q. No. 59 The correct acidic order of the following is I > II > III III > I > II II > III > I I > III > II Q. No. 60 Picric acid is Trinitrotoluene Trinitroaniline A volatile liquid 2, 4, 6 Trintrophenol Q. No. 61 Kolbe Schmidt reaction is used for Salicylic acid Salicylaldehyde Phenol Hydrocarbon
21 Q. No. 62 Benzenediazonium chloride on reaction with phenol in weakly basic medium gives Diphenyl ether p hydroxyazobenzene Chlorobenzene Benzene Q. No. 63 With excess bromine, phenol reacts to from Mixture of (1) and (2)
22 Q. No. 64 Which of the following is a Riemer Tiemann reaction NaOH C H OH + CCl Salicyclicacid C H OH + Zn C H C H OH + NaOH C H ONa None of these Q. No. 66 In friedal crafts acylation, besides AlCl 3, the other reactants are
23 Q. No. 67 Which of the following reagents will produce salicyldehyde on reaction with phenol CHCl 3 /NaOH CCl 4 /NaOH CH 2 Cl 2 /NaOH CH 3 Cl/NaOH Riemer Tiemann rxn Q. No. 68
24 Q. No. 69 Q. No. 70 The compound A when treated with methyl alcohol and few drops of H 2 SO 4 gave smell of winter green. The compound A is oxalic acid tartaric acid salicylic acid succinic acid
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