topper’s package chemistry-xii alcohol, phenol
Post on 30-May-2022
2 Views
Preview:
TRANSCRIPT
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
62
MULTIPLE CHOICE QUESTIONS
TOPIC (1) PREPARATION OF ALCOHOL, PHENOL1. In the reaction sequence
2 2 4 22
.2
H O dil H SO HNiHg
CaC A B C ,
the product C is
(a) 3CH OH (b) 3CH CHO
(c) 2 5C H OH (d) 2 4C H
2. Propene, 3 2CH CH CH can be convertedinto 1-propanol by oxidation. Which set ofreagents among the following is ideal to effectthe conversion
(a) alkaline 4KMnO
(b) 2 6B H and alkaline 2 2H O
(c) 3 /O Zn dust(d) OsO4/CH2Cl2
3. An industrial method of preparation of metha-nol is(a) catalytic reduction of carbon monoxide in
presence of ZnO - Cr2O3(b) by reacting methane with steam at 900°C
with a nickel catalyst(c) by reducing formaldehyde with lithium alu-
minium hydride(d) by reacting formaldehyde with aqueous so-
dium hydroxide solution4. Give the best conditions for this transformation:
OH C3 H C3
OCH3
OCH3
(a) CH3OH, H+(Cat.), heat(b) H2O, H+(cat.), heat(c) Mg, ether, CH3OH(d) SOCl2, CH3OH
5. 3PBr Mg,ether(A) (C) Grignard reagent 2 2 7
2 4
Na Cr OH SO (B)
(D) 2H O
(3, 4-dimethyl3-hexanol)
When Grignard reagent reacts with (B) product (D) will obtained.
(a)OH
(b) OH (c)OH
(d)OH
TOPIC (2) CHEMICAL REACTION OF ALCOHOL,PHENOL
6. Among the following the one that gives positiveiodoform test upon reaction with I2 and NaOH is
(a)
3
3 2||CH
— CH CH CH OH
(b) 3PhCHOHCH(c) 3 2 2 3( )CH CH CH OH CH CH(d) 6 5 2 2C H CH CH OH
7. Denatured alcohol is(a) pure ethanol(b) pure CH3OH(c) ethanol + CH3OH + C3H6(d) ethanol + CH3OH + Pyridine
8. The reagent used in the dehydration of an alcoholis(a) phosphorus pentachloride(b) calcium chloride(c) aluminium oxide(d) sodium chloride
9. Mild oxidation of glycerol with H2O2/FeSO4 gives(a) glyceraldehyde only(b) dihydroxy acetone only(c) glycerose(d) glucose
10. The alcohol that produces turbidity immediatelywith ZnCl2/conc. HCl at room temperature is(a) 1-hydroxy butane(b) 2-hydroxy butane
Unit7
ALCOHOL, PHENOL ÐERS
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
63
(c) 2-hydroxy-2-methyl propane(d) 1-hydroxy-2-methyl propane
11. In the esterification reaction of alcohols whichpair is more reactive?
(a) 3 3( )CH C OH
(b) 3 3CH OH CH COOH
(c) 2 5 3C H OH CH COOH
(d) all to equal extent
12. Ethyl alcohol on reaction with 3CH MgCl gives
(a) 2 6C H (b) 4CH
(c) 2 5C H MgCl (d) 2 6 4C H CH
13. A compound X with molecular formula 3 8C H Ocan be oxidised to a compound Y with themolecular formula 3 6 2C H O . X is most likely to be
(a) primary alcohol (b) sec. alcohol(c) aldehyde (d) ketone
14. 3-pentanol and 2-pentanol are tested by(a) lucas reagent (b) esterification(c) 2I NaOH (d) 2CaOCl
15. When primary alcohol is oxidised with chlorine,it gives(a) 2Cl CHCHO (b) 2ClCH CHO(c) 3CCl CHO (d) 3 3CH COCH
16. Primary, secondary and tertiary alcohols maybe distinguished by(a) frankland reaction(b) victor Meyer Test(c) williamson’s synthesis(d) cannizzaro’s reaction
17. In the following reaction X and Y respectively are
42 4
/2 5 3 2 5/
KMnO H YH SO
C H OH X CH COOC H
(a) 3 2 5,CH OH C H OH(b) 3 3,CH CHO CH OH(c) 2 2 3,CH CH CH COOH(d) 3 2 5,CH COOH C H OH
18. Phenol, p-Methylphenol, m-Nitrophenol and p-Nitrophenol follows order of increasing acidicstrength(a) phenol, p-Methylphenol, p-Nitrophenol, m-
Nitrophenol(b) p-Methylphenol, Phenol, m-Nitrophenol, p-
Nitrophenol
(c) p-Methylphenol, m-Nitrophenol, Phenol andp-Nitrophenol
(d) m-Nitrophenol, p-Nitrophenol, Phenol and p-Methylphenol
19.CH OH2
2
2 5 2
SOCl Mg OPyridine, (C H ) O H
CH2 CH2
Product
(X)
Product of the reaction is :
(a)2 2 2CH CH CH OH
(b)2 2 2CH CH CH OH
(c)
CH3
2 2CH CH OH
(d)2 3CH CH
2CH OH
20. Phenol when it first reacts with concentratedsulphuric acid and then with concentrated nitricacid gives(a) p-nitronphenol(b) nitrobenzene(c) 2, 4, 6-trinitrobenzene(d) o-nitrophenol
21. Phenol is treated with bromine water andshaken well to get white precipitate. The whiteprecipitate is :(a) 1-Bromophenol(b) 2, 4, 6-Tribromophenol(c) 2, 4-Dibromophenol(d) Mixture of o-, p-bromophenol
22. A compound is soluble in conc. 2 4H SO , it doesnot decolourise bromine in carbon tetrachloridebut is oxidised by chromic anhydride in aqueoussulphuric acid within two seconds, turningorange solution to blue, green and then opaque.The original compound is(a) primary alcohol (b) tertiary alcohol(c) alkene (d) ether
23. The product
OH
CH2OH
2 33
1. K CO2. CH I
X . X is
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
64
(a)
OH
CH2OCH3
(b)
OCH3
CH2OH
(c)
CH3
CH2OH
(d)
OCH3
CH2OCH3
24. Salicylic acid is prepared from phenol by
(a) Reimer Tiemann reaction
(b) kolbe’s reaction
(c) kolbe-electrolysis reaction
(d) none of these
25. O C
O
32 4
HNOH SO
A
The major product (A) is
(a) O C
O NO2
(b) O C
ONO2
NO2
(c) O C
O
O2N
(d) O C
O
NO2
26. Which can be cleaved by 4HIO ?
(a)3 2 2 2
|| ||O O
CH CH CCH CCH
(b)3 2 3
| ||OH O
CH CH CCH CH
(c) 3 2 3
| |OH OH
CH CH CH CH CH
(d) 3 2 2 3
|| ||O O
CH CCH CHCH CCH
27. Number of moles of 3CH COCl required by A is :
O
HOC
O
COH
OH(a) one (b) two(c) three (d) four
28. Periodate oxidation of 1,2-cyclopentanediol is :
(a)
O
O
(b)
O
O
(c)
O
(d)O
C CH CH CH CH4 2 2 2
O
29. on reaction with CH3OH in presence of H+
gives :
(a) OCH3
CH3
(b) OCH3
(c) OCH3
(d)
OCH3
30. -3
| |
3 2 2 3 2 3 3 |
3
CH OHCH CH CH OH CH CH – CH –CH CH – C OH
CH(I) (II) (III)
The solubility of the above alcohols in water de-creases in the order
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
65
(a) I > II > III (b) II > III > I(c) II > I > III (d) III > II > I
31. Propan-1-ol can be prepared from propene bytreating it with(a) H2O in presence of H2SO4(b) Hg(OAc)2 and water, and subsequently with
NaBH4(c) H2O in presence of HgSO4(d) B2H6 in THF and subsequently with H2O2 and
NaOH32. Ethyl acetate is treated with excess of
methylmagnesium iodide in dry ether. The re-action mixture is then treated with water. Theorganic products obtained are:
(a) |
3 2 3 2 3
OHCH CH C (CH ) andCH OH
(b) |
3 2 3 32
OHCH CH C CH andCH OH
(c) 3 2 3 23CH CH COHandCH CH OH
(d) 3 3 23CH COHandCH CH OH
33. The product of acid-catalysed hydration of 2-phenylpropene is
(a) -2-phenyl-l-propanol
(b) -1-phenyl-2-propanol
(c) 2-phenyl-2-propanol(d) 3-phenyl-1-propanol
34. Which of the following underoges acid catalyseddehydration most readily?
(a)
O
OH
(b)
O
OH
(c)
OH
(d)
OHO
35. Which of the following compounds will not yieldiodoform on heating with iodine and diluteNaOH?
(a)
3|
3 |
3
CH
CHCH C OH
(b)
3|
3 3|
3
H
CH
C OCH C C CH
(c)
3| |
3 3|
3
H C OH
CHCH C C HCH
(d)
CHCH3
OH
36. Which of the following is the most stable confor-mation of ethylene glycol?
(a) (b)
(c) (d)
37. For the reaction
MeO
Ph PhOH
H+
the major product formed is
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
66
(a)
MeO
PhPhOH
(b)
OMe
Ph
HO
OH
(c)
MeO
Ph Ph
HC=C
(d)
OMe
Ph
Ph
HC=C
38. Identify the major product formed in the follow-ing reaction
OH
CH OH2
2 5
2 3
C H INa CO
(a)
OH
CH OC H2 2 5
(b)
CH OH2
(c)
CH OC H2 2 5
(d)
O
39. 4NaBHB CH = CH – CHO
2H /Ni AA and B are :
(a) CH CH CHO2 2 ,
CH=CH-CH OH2
(b) CH CH CH OH, 2 2 2
CH=CH-CH OH2
(c) CH=CH-CH OH2 in both cases
(d) CH CH CH OH2 2 2 in both cases
40. Dehydration of the alcohols
(I) OH
(II)OH
(III)OH
(IV) OH
will be in order(a) IV > III > II > I (b) I > II > III > IV(c) IV > II > III > I (d) II > IV > I > III
41. Which one of the following can be the majorproduct during dehydration of following alcohol:
OHH
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
67
(a) (b)
(c) (d)
42. CH3MgBr+
O
3H O HBrA B
3
Mg/ether HCHO HIH O
C D E , E is:
(a) H C3 CH I2
(b) CH CH2 3
I
(c) CH3
I (d) CH3
I
43. Ethanol on reaction with acetic anhydridegives:(a) Acetic ester(b) Formic ester(c) Ethanoic acid(d) Acetic ester and Ethanoic acid both
44. Glycol on heating with PI3 mainly gives:(a) Ethylene (b) Ethylene iodide(c) Ethyl iodide (d) Ethane
45.
CI
O
H
Alc.KOHMajor Product is:
(a) H
H
O
O
(b) H
O
(c)H
O
(d)
O
46. Lucas test is used to make distinction be-tween 1°, 2° and 3° alcohols
2anhydrous ZnCl2conc. White turbidity
ROH HCl RCl H O
This shows that:(a) ROH behaves as an acid
(b) greater the value of pKa (alcohol), greater thereactivity with conc. HCl and thus sooner theformation the formation of white turbidity.
(c) alcohol which reacts fastest with Na metal,will gives turbidity at fastest rate.
(d) alcohol which gives red colour during VictorMayor test, will always give turbidity at slowerrate then those giving blue or white colourduring Victor Mayor test.
47.
OH OH
2 4Con.H SO P, P is
(a)
O
(b)
O(c) both (a) and (b) (d) None
48. OHH
2
33 2
(a )NaNH(excess)
(b)CH Br(1.eq.)(c )CH CH Br 1eq.(d)Lindlar 'catalyst
Product , Product is:
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
68
(a) O
(b) O
(c) O
(d) O
49. Alkene 2H O/H
2- Butanol Alkene may be:(a) cis-2-butene (b) trans-2-butene(c) 1- butene (d) All of these
50. HBr reacts fastest with:(a) 2-methylpropan-2-ol(b) Propan-2- ol(c) Propon-1- ol(d) 2- methylpropna-1- ol
51. Choose the correct statement(s) for the reaction
O
OCH3
AlCl /CS3 2
Heat
OH
CH3
O
(B)
+
OHCH3
O
(A)
(a)(B) is formed more rapidly at higher tempera-ture(b) (B) is more voltile than (A)(c) (a) is more voltile then (B)(d) (a) is formed in higher yields at lower tem-perature
52. The end product Y for the following reaction is(C6H5)2 CHCH2OH 3CH INa X Y
(a) 6 5 22C H C CH
(b) 6 5 22C H CHCH ONa
(c) 6 5 22
OC H CHCH C ONa
(d) 6 5 2 32C H CHCH OCH
53. 1-propanol and 2-propanol can be distinguished by(a) oxidation with alkaline KMnO, followed by
reaction with Fehling's solution(b) oxidation with acidic dichromate followed by
reaction with Fehling solution
(c) oxidation by heating copper with acidic HNO3followed by reaction with Fehling's solution
(d) oxidation with concentrated H2SO4 followed byreaction with Fahling's solution
54. Chlorination of toluene in the presence of lightand heat followed by treatment with aqueousNaOH gives(a) o-cresol(b) p-cresol(c) 2, 4-dihydroxytoluene(d) benzoic acid
55. Phenol reacts with bromine in carbon disulphideat low temperature go give(a) m-bromophenol(b) o - and p - bromophenol(c) p - brmophenol(d) 2, 4, 6- tribromophenol
56. Which of the following compounds is oxidised toprepare ethyl ketone?(a) 2-propanol (b) 1-butanol(c) 2-butanol (d) t-butyl alcohol
57. Which of the following is soluble in water?(a) CS2 (b) C2H5OH(c) CCl4 (d) CHCl3
58.
OH
CO H 2 2 2 7K Cr O
(P); Product (c) is:
(a) (b)
(c)CO H2
(d)
CO H2
59.
CO H2
CO H2
3
2 4
2CH OHH SO , (A) ; Product (A) is:
(a)
CO CH2 3
CO H2
(b)
CO CH2 3
CO CH2 3
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
69
(c)
CO CH2 3
CO CH2 3
(d)
CO
CO
CH3
CH3
60.
OH
OH(Resorcinol)
2I +NaOH3
(Iodoform)(A)CHI ; Compound
(A) is:
(a)
O
CH2
CO Na2 3
ONa– +
(b) H – O – C – (CH ) – C – OH 2 2
O O
(c) CH – CH – CH – CH – C – OH 3 2 2 2
O
(d) CH – (CH ) – C – ONa3 2 3
O
61.18OH
OH
4
H–BrCCl Major product ob-
tained in the reaction is:
(a)
O
(b)O Br
(c)
BrOH
(d)OH
Br
62.
OH
CCH3
CH3 OH
N+
HCrO Cl, (PCC)·CH Cl3 2 2
–
Product of the reaction is:
(a)
OH
(b)
CHO
OH
(c)
CO H2
OH
(d)
O
OH
63.
HO
NH2
2AC O100ºC (A); Product (A) of re-
action is:
(a)
OO
NHO
(b)
OO
NH2
(b)
OH
NHO
(d)
OO
NHO
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
70
64.
NH2
OH
CH3
Ph
H
Ph
HNO2 A
Major Product obtained in the above reaction is:
(a) Ph CO H CH3
Ph(b) Ph C
O HCH3
Ph(c) Racemic (d) Diastereomers
65.OHOH 4 4
+HIO (1)LiAlH (excess)
2(H)(A) (B)
Total number of stereoisomers of product (B) willbe?(a) 2 (b) 3(c) 4 (d) 5
66.
O CH3 OHO
(1) CH3MgBr/H+ (2) KMnO4 (cold dil.)(3) CrO3 (4) H+/For the above conversion the correct order ofreagents used is:(a) 1 2 3 4 (b) 1 4 3 2(c) 1 4 2 3 (d) 2 3 4 1
67.
OH OH
PCC (A) OH OHH+
(B)
3
(1)MeMgBr(2)H O
(C) 4NaBH ,EtOH (D)
Product (D) in above reaction is:
(a)
OH OH
(b)
OH OH
(c)
OH
OH (d)
OH OH
68. Which describes the best stereochemical aspectsof the following reaction?
CH3
CD3
OHPh H–Br Product
(a) Inversion of configuration occurs at the car-bon undergoing substitution.
(b) Retention of configuration occurs at the car-bon undergoing substitution.
(c) Racemization (loss of configuration) occurs atthe carbon undergoing substitution.
(d) The carbon undergoing substitution is notstereogenic
69. Which of following is an example of Pinacol-Dia-zotization?
(a)+AgMe C – CMe2 2 Me – C – CMe2 3
O
OH Br
(b)2NaNO
HClMeC – CMe2 2 Me – C – CMe 3
O
OH NH2
(c)H
Me C – CMe2 2 Me – C – CMe3
O
OH OH
(d)H
RR
O
RR
OH
70. In the given pair of alcohol, in which pair sec-ond alcohol is more reactive than first towardshydrogen bromide?
(a)
CH3 OH
and
H OH
(b)
OH
and CH CH3
OH
(c)CH – CH – CH – CH3 2 3
OH and
CH – CH – CH – CH – OH3 2 2
CH3
(d)CH – CH – CH – CH3 2 3
OH and
(CH ) C – CH – CH3 2 2 3
OH
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
71
71. OHOH
CH22MnO (A) , Product (A)
is:
(a)
CH2
OHC
H
O
(b) CHOOH
CH2
(c)OH C
OCH 2
H
(d)OH C
O
O H
CH2
72.4LiAlH
(Chiral alcohol only)(A) 2(B) ; structure of (A) is:
(a)
O
OCH3 CH C CH CH3
Et Et
(b)
O
OCH3 CH C CH CH3
Et Et
CH2
(c)
O
O
(d)O
TOPIC (3) PREPARATION OF ETHER &CHEMICAL REACTION OF ETHER
73. Diethyl ether acts as a(a) lewis acid (b) lewis base(c) reducing agent (d) oxidising agent
74. Ethyl acetate reacts with 3CH MgBr to form(a) secondary alcohol(b) tertiary alcohol(c) primary alcohol and acid(d) carboxylic acid
75. Heating of methyl phenyl ether with HI gives(a) methanol + iodobenzene(b) methyl iodide + iodobenzene(c) methyl alcohol + benzyl alcohol(d) methyl iodide + phenol
76. Reaction of CH – 2 CH2
O with RMgX followed by
hydrolysis will lead to produce
(a) RCHOHR (b) 3RCHOHCH
(c) 2 2R CHCH OH (d) 2 2RCH CH OH
77. Which of the following is best method to preparephenyl t-butyl ether :
(a) 3 3 6 5(CH ) C O Na C H Br
(b) 6 5 3 3C H ONa (CH ) CC l
(c) 3 2 46 5
Hg (OCOCH ) NaBH3 2 2 C H OH
(CH ) C CH
(d) None of these
78. The major product formed in the followingreaction is :
CH3
CH2BrCCH3
H
33
CH OCH OH/
major Product.
(a) CH2OCH3
CH3
CCH3
H
(b)CH2CH3CHCH3
OCH3
(c)CH3
CH2CCH3
(d) CH3
CH3
CCH3
OCH3
79. Acetyl bromide reacts with excess of 3CH MgIfollowed by treatment with a saturated solution
of 4NH Cl gives
(a) acetone(b) acetamide(c) 2-methyl-2-propanol(d) acetyl iodide
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
72
80. Consider the following synthesis
(I) 2 43
( ) Hg OAc NaBHCH OH
(II) 3 3H O CH BrNa
(III) 3 3
2 2
./
BH THF CH BrNaH O OH
This change
3
3 2
|CH
CH CH CH CH
3
3 3
3
|
|
CH
CH CH CHCH
OCH
can be made by using
(a) I, II and III (b) I and II(c) I and III (d) I only
81. This polyether is known as :
O
O
O
O
(a) 12-crown-4 (b) 18-crown-6(c) 8-crown-4 (d) 4-crown-8
82. Cl Cl 3 ,CH ONa A A can be :
(a) CH3O OCH3
(b) CH3O Cl
(c) OCH3Cl
(d) no reaction
83. CH – O – C – CH33
H
CH3
CH3
Me C – I + Me – OH3 true
about this is:(a) Me3C – OMe with anhydrous HI gives this
reaction(b) Me3C – OMe with concentrated HI gives this
reaction(c) Both of the above(d) None of these
84.
O
R'
R"
?RMgXH O2
Product obtained
is:
(a) R' – C – CH OH2
R
R"
(b) RCH – C – OH2
R'
R"
(c) R'CH – C – OH2
R
R"
(d) R"CH – C – OH2
R
R"
85. B CH OH3 H O218
CH ONa3 H+CH – C – CH3 2
O
CH3
A , A and B are
(a) CH – C – CH , CH – C – CH3 2 3 2
CH3 CH3
18OH OH OH OCH3
(b) CH – C – CH , CH – C – CH3 2 3 2
CH3 CH3
HO 18OH OH OCH3
(c) CH – C – CH , CH – C – CH3 2 3 2
CH3 CH3
18OH OH 18OH 18OH
(d) CH – C – CH , CH – C – CH3 2 3 2
CH3 CH3
18OH OCH3 OH18OH86. In the following reaction, final product is
ClCH CH – CH2 2
14 NaOC H (1 eq.)2 5
O
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
73
(a) ClCH CHCH OC H2 2 2 5
OH
14(b) ClCH CHCH ONa2 2
OC H2 5
14
(c) CH CHCH OC H2 2 2 5
14
O
(d) CH – CHCH OC H2 2 2 5
14
O
87. (1)CF COOH3(2)H O2
3 2 18CH CH CH Product.
Product is:
(a) CH -CH-CH3 2
O18
(b) CH -CH-CH3 2
O
(c) CH -CH-CH3 2
OH
OH18
(d) CH -CH-CH3 2
OH
OH18
88. Which one of the following compounds preparemethyl-ethyl ketone on oxidation?(a) 2- Propanol (b) 1-Butanol(c) 2-Butanol (d) ter-Butyl alcohol
89. The compound that will react most readily withNaOH to form methanol is(a) (CH3)4 N
+ I– (b) CH3OCH3(c) (CH3)3S
+I– (d) (CH3)3CCl90. The reaction products of C6H5OCH3 + HI
is(a) C6H5OH + CH3I (b) C6H5I + CH3OH(c) C6H5CH3 + HOI (d) C6H6OH + CH3OH
91. Diethyl ether on heating with concentrated HIgives two moles of(a) ethanol (b) iodoform(c) ethyl iodide (d) methyl iodide
92. Predict the product when given compound reactswith LiAlH4:
OCH3
C
O
HC
O
O (A)
(a)
CH3C
O
O
O
OH
(b)
CH3C
O
O
OH
OH
(c)
OH
OH
OH
(d)
OH
C
O
H OH
93.
O
O
O
LiAlH (A)4
(B)
xAc O
x = moles of anhydride consumed(a) 1 (b) 2(c) 3 (d) 4
94.
3
5 10
H
C H O(A) B+CO
; (B) and (C) both give +ve io-
doform test. Compound (A) is:(a) CH3– CH = CH – O – CH2–CH3
(b)C
CH3
O CH2CH3 CH3
H
(c)C
CH2
O CH2CH3 CH3
(d) both (b) and (c)
Topper’s Package chemistry-XII Permutation and CombinationsAlcohol, Phenol & Ethers
74
95.
OH
4LiAlHTsClPyridine (A) (B)
Product (B) of the above reaction is:
(a) (b)
(c) (d)
Cl
INTEGER QUESTIONS1. How many isomeric alcohols (including ste-
reo isomers if any) are possible for the com-pound with molecular formula C5H12O
2. How many cyclic (including stereo isomers)alcohols are possible for the compound withmolecular formula C4H7OH
3. In Zeisel’s method for the determination ofmethoxyl groups, a sample of 2.68 gm of acompound (A) gave 14.08 gm of AgI. If themolecular weight of compound (A) is 134, thenumber of (–OCH3) group(s) in the compound
(A) is :4. If (dl) or ( ) 2-methyl butanoic acid were es-
terified by reaction with (dl) or ( ) 2-butanol,how many optically active compounds wouldbe present in the final equilibrium reactionmixture?
5.
O CH3
O
Conc.HI (a) mole HI
is consumed
O CH3
Conc.HI (b) mole of HI
is consumedSum of a + b =
6. CH O 3 O O
OCH 3
How many moles of HI consumed in abovereaction?
UNIT : 7. ALCHOLOL, PHENOL & ETHER1. c 2. b 3. a 4. a 5. a6. b 7. c 8. c 9. c 10. c11. b 12. b 13. a 14. c 15. c16. b 17. d 18. b 19. b 20. c21. b 22. a 23. b 24. a 25. c26. b 27. a 28. d 29. c 30. d31. d 32. d 33. c 34. d 35. a36. b 37. d 38. b 39. b 40. a41. c 42. d 43. d 44. a 45. d46. b 47. b 48. b 49. d 50. a51. b 52. d 53. c 54. d 55. b56. c 57. b 58. b 59. b 60. a61. a 62. b 63. c 64. a 65. c66. c 67. b 68. c 69. b 70. d71. c 72. b 73. b 74. b 75. d76. d 77. c 78. c 79. c 80. d81. a 82. b 83. b 84. b 85. a86. d 87. c 88. c 89. a 90. a91 c 92. c 93. c 94. d 95. c
INTEGER QUESTIONS1. 8 2. 7 3. 3 4. 4 5. 36. 2
top related