Physical Properties of Ethers Flashcards
1
Q
- Which of the following is distinguish test for ether?
a) Lucas test
b) FeCl3 test
c) Molisch test
d) Zeisel test
A
d) Zeisel test
2
Q
- Which of the following statement is not true about
ethers?
a) The lower ethers are highly volatile and flammable
b) Lower ethers also act as anaesthetics
c) Ethers are not organic solvents
d) Simple ethers (such as diethyl ether) are tasteless
A
c) Ethers are not organic solvents
3
Q
- Why ether is more volatile than an alcohol having the
same molecular formula?
a) dipolar character of ethers
b) alcohols having resonance structures
c) inter-molecular hydrogen bonding in ethers
d) inter-molecular hydrogen bonding in alcohols
A
d) inter-molecular hydrogen bonding in alcohols
3
Q
- Why the boiling point of ethyl alcohol is much higher
than that of dimethyl ether though
both have the same molecular weight?
a) Ether is insoluble in water
b) Methyl groups are attached to oxygen in ether
c) Dipole moment of ethyl alcohol is less
d) Ethyl alcohol shows hydrogen bonding
A
d) Ethyl alcohol shows hydrogen bonding
4
Q
- Which of the following has lower boiling point than
dimethyl ether?
a) Pentane
b) Propane
c) Tetrahydrofuran
d) n-butanol
A
b) Propane
5
Q
- Which of the following product is formed, when ether is
exposed to air?
a) Oxide
b) Alkanes
c) Alkenes
d) Peroxide of diethyl ether
A
d) Peroxide of diethyl ether
5
Q
- An organic compound A reacts with sodium metal and
forms B. On heating with conc. H2SO4, A gives diethyl
ether. What are A and B?
a) C2H5OH and C2H5ONa
b) C3H7OH and CH3ONa
c) CH3OH and CH3ONa
d) C4H9OH and C4H9ONa
A
d) C4H9OH and C4H9ONa
5
Q
- What is the smell of the diethyl ether?
a) Vinegar
b) Sweet smell
c) Rotten egg
d) Fish like smell
A
b) Sweet smell
6
Q
- Which of the following statements about ethers is
incorrect?
a) Ethers are flammable
b) Ethers form peroxides by free radical oxidation
c) Ethers are widely used as extraction solvents
d) An ether oxygen can only be found within an acyclic
carbon chain
A
d) An ether oxygen can only be found within an acyclic
carbon chain
7
Q
- How many hydroxyl groups are present in diols?
a) One
b) Two
c) Three
d) Four
A
b) Two
8
Q
- Which of the following Is the correct reason for cyclic
ether are miscible in water?
a) Planer structure
b) Larger size
c) Molecular weight
d) Hydrogen bonding
A
d) Hydrogen bonding
9
Q
- What is the general formula for dihydric alcohol?
a) (CH2)n(OH)2 where n = 2,3…etc
b) (CH2)n(OH)2 where n = 1,2,4… etc
c) CnH2n+1OH where n = 1, 2 …etc
d) (CH2)n(OH)3 where n = 3, 4, 5 …etc
A
b) (CH2)n(OH)2 where n = 1,2,4… etc
10
Q
- Which of the following is not the example of dihydric
alcohol?
a) Glycerin
b) Parahydroxyphenol
c) Resorcinol
d) Catechol
A
a) Glycerin
11
Q
- Which Biomolecules simply refers as “Staff of life” in the
given macromolecules?
a) Protein
b) Lipids
c) Carbohydrate
d) Vitamins
A
c) Carbohydrate
11
Q
- Which type of product is formed when Cold dilute
alkaline solution of Bayer’s reagent reacts with alkene?
a) Syn-diol
b) Anti-diol
c) syn- and anti-geometry will not be there in diol
d) Trans diol
A
a) Syn-diol
12
Q
- Majority of the monosaccharides found in the human
body are of which type stereoisomer?
a) L-type
b) D-type
c) neutral
d) racemic mixture
A
b) D-type
12
Q
- Which compound is used with 1,2- dibromoethane for
the formation of glycol?
a) Na2CO3
b) NaHCO3
c) NaOH
d) CH3COONa
A
a) Na2CO3
12
Q
- Which of the following statement is not true about
preparation of alcohol?
a) French chemist Charles-Adolphe Wurtz (1817–1884)
first prepared ethylene glycol in 1856
b) First synthesis of glycol was from “ethylene iodide”
(C2H4I2) with silver acetate and then hydrolyzed the
resultant “ethylene diacetate” with potassium hydroxide
c) It was synthesized from ethylene dichloride in Germany
and used as a substitute for glycerol in the explosives
industry
d) There is no biological process for the synthesis of glycol
A
d) There is no biological process for the synthesis of glycol
12
Q
- How can we detect the presence of resorcinol in the
solution?
a) Ceric ammonium nitrate test
b) Lucas test
c) Phthalic acid test
d) Remini’s test
A
c) Phthalic acid test
13
Q
- Which is the simplest carbohydrate?
a) Dihydroxy acetone
b) Glycerldehyde
c) Glucose
d) Gulose
A
b) Glycerldehyde
14
Q
- In carbohydrates which are the main functional groups
are present?
a) Alcohol & Carboxyl groups
b) Aldehyde & Ketone groups
c) Hydroxyl groups & Hydrogen groups
d) Carboxyl groups & Others
A
a) Alcohol & Carboxyl groups
15
Q
- Which of the following is true about Turanose?
a) Reducing disaccharides of glucose and fructose
b) Non-reducing disaccharide
c) 7-methyl sugar
d) a deoxy sugar
A
a) Reducing disaccharides of glucose and fructose
16
Q
- Which of the following is the examples of Epimers?
a) Glucose & Galactose
b) Glucose & Ribose
c) Mannose & Glucose
d) fructose and glucose
A
a) Glucose & Galactose
17
Q
- Which of the following is not a disaccharide?
a) Sucrose
b) Maltose
c) Lactose
d) Galactose
A
d) Galactose
18
Q
- Which of the following will not be reactive towards
seliwanoff reagent?
a) Maltose
b) Inulin
c) Fructose
d) Sucrose
A
a) Maltose
18
Q
- Which of the following carbohydrate do not have any
essential nutritional value?
a) Sucrose
b) Cellulose
c) Dextrin
d) Glycogen
A
c) Dextrin
19
Q
- Which sugars are present in Sucrose?
a) Fructose and glucose
b) Glucose and glucose
c) Glucose and galatose
d) Fructose and galatose
A
a) Fructose and glucose
19
Q
- Which catalyst is used for reaction of ethylene glycol
with acetic acid?
a) Amberlyst 36
b) Hydrogen peroxide
c) Potassium permanganate
d) Aluminium bromide
View Answer
A
a) Amberlyst 36
20
Q
- Which of the following is the most convenient and
inexpensive method of formation of glycol?
a) Hydroxylation of alkene by Bayer’s reagent
b) From 1,2-dibromoethane
c) Oxidation of ethylene and using Ag as catalyst
d) Ethylene treatment with HOCl
A
a) Hydroxylation of alkene by Bayer’s reagent
21
Q
- Criegee oxidation of glycol should be performed in
which type of medium?
a) Hydrous
b) Anhydrous
c) Acidic
d) Basic
A
b) Anhydrous
21
Q
- What happens when glycol reacts with lead
tetraacetate?
a) No reaction
b) Ketones will be formed
c) Aldehyde will not be formed
d) Monohydric alcohols will be formed
A
b) Ketones will be formed
21
Q
- Which of the following is not a method of preparation
of glycol?
a) Shell’s omega method
b) From carbon monoxide
c) From Dimethyl oxalate
d) From nitrogen
A
d) From nitrogen
21
Q
- Which of the following statement is not true about
criegee oxidation?
a) The oxidative cleavage of an alpha,beta-diol using lead
tetraacetate to give the corresponding carbonyl
compounds
b) It is analogous but milder than the Malaprade reaction
c) This oxidation was discovered by Rudolf Criegee and
coworkers and first reported in 1931
d) Rate of reaction do not depend upon stereochemistry of
glycol
A
d) Rate of reaction do not depend upon stereochemistry of
glycol
22
Q
- What is the intermediate form in the mechanism of the
lead acetate and glycol?
a) Three membered cyclic ring
b) Four membered cyclic ring
c) Five membered cyclic ring
A
b) Four membered cyclic ring
23
Q
- What is the name of the reaction when lead
tetraacetate is used cleave a carbon-carbon bond in a
glycol?
a) Criegee oxidation
b) Swern oxidation
c) Baeyer-Villiger Oxidation
d) Jones oxidation
A
a) Criegee oxidation
24
Q
- What is the name of the process of formation of glycerol
via formation of allyl chloride?
a) Epichlorohydrine
b) Acrolein
c) Propylene oxide
d) Chloroform process
A
a) Epichlorohydrine
24
Q
- Glycerol can be formed through digestion of which of
the following?
a) galactose
b) fats
c) glucose
d) sucrose
A
b) fats
24
Q
- What happens when glycol reacts with periodic acid?
a) No reaction
b) Ketones will be formed
c) Aldehyde will not be formed
d) Monohydric alcohols will be formed
A
b) Ketones will be formed
24
Q
- Ethylene glycol on treatment with phosphorus tri
iodide yields
a) ethyl iodide
b) ethylene di-iodide
c) ethylene
d) ethane
A
b) ethylene di-iodide
25
Q
- Fatty acids and glycerol (C3H8O3) are produced after
hydrolysis of which of the following?
a) amino acids
b) fats
c) starch
d) cellulose
A
b) fats
26
Q
- Which of the following is not the step for the isolation of
glycerine form spent lye?
a) Brine Solution Preparation
b) Saponification and salting
c) Zone distillation
d) Glycerin Recovery from Spent Soap Lye
A
c) Zone distillation
27
Q
- Why synthetic production of glycerol is not
commercially successful?
a) Because process is expensive
b) Because no marketing demands
c) Because process is hazardous
d) Because of the large-scale production of biodiesel from
fats
A
c) Because process is hazardous
28
Q
- What will be the product for the reaction of catalytic
hydrogenation of glycerol?
a) Glycerol carbonate
b) Epichlorohydrine
c) Propylene glycol
d) Ethylene glycol
A
c) Propylene glycol
29
Q
- What will be product of the reaction if lead tetraacetate
and glycerol will react?
a) Glycerol carbonate
b) Ethylene glycol
c) Formic acid
d) Formaldehyde and formic acid
A
d) Formaldehyde and formic acid
29
Q
- What will be the product for when glycerol is heated
with hydriodic acid?
a) Glycerol carbonate
b) Epichlorohydrine
c) Ethylene glycol
d) Isopropyl iodide
A
d) Isopropyl iodide
29
Q
- Primary alcohol is gently heated to produce aldehyde in
presence of acidified solution of which of the following
compound?
a) hydroxide
b) dichromate
c) ethanol
d) ethanal
A
b) dichromate
30
Q
- What will happen when glycerol is added into acid?
a) Esterification
b) Alcoholysis
c) Transesterification
d) No reaction will occur
A
a) Esterification
31
Q
- Which Catalyst is used in Rosenmund reduction?
a) Pd / BaSO4
b) Zn-Hg couple
c) LiAlH4
d) Ni/H2
A
a) Pd / BaSO4
31
Q
- What will happen when glycerol is added into bromine
water and sodium carbonate?
a) Glycerol carbonate
b) Dihydroxyacetone
c) Ethylene glycol
d) Isopropyl iodide
A
b) Dihydroxyacetone
31
Q
- What will happen when glycerol is added into
dimethyloxalate?
a) Glycerol carbonate
b) Dihydroxyacetone
c) Glycerol formate
d) Glycerol oxalate
A
d) Glycerol oxalate
32
Q
- Catalyst SnCl2/HCl is used in which of the following
method of synthesis of aldehyde?
a) Stephen’s reduction
b) Cannizzaro reaction
c) Clemmensen’s reduction
d) Rosenmund’s reduction
A
a) Stephen’s reduction
32
Q
- On heating calcium acetate and calcium formate, the
product formed is which of the following?
a) CH3COCH3
b) CH3CHO
c) HCHO+CaCO3
d) CH3CHO+CaCO3
A
d) CH3CHO+CaCO3
33
Q
- In the Rosenmund’s reduction, BaSO4 taken with
catalyst Pd acts as which of the following?
a) Promotor
b) Catalytic poison
c) Cooperator
d) Absorber
A
b) Catalytic poison
34
Q
- Ketones can be prepared in one step from which of the
following process?
a) Hydrolysis of esters
b) Oxidation of primary alcohol
c) Oxidation of secondary alcohol
d) Reaction of acid halide with alcohols
A
c) Oxidation of secondary alcohol
34
Q
- Ketones are prepared by which of the following name
reaction?
a) Clemmensen’s reduction
b) Cannizzaro reaction
c) Rosenmund’s reduction
d) Oppenaur’s oxidation
A
d) Oppenaur’s oxidation
34
Q
- Which of the following gases when passed through
warm dilute solution of H2SO4 in presence of HgSO4 gives
acetaldehyde?
a) CH4
b) C2H6
c) C2H4
d) C2H2
A
d) C2H2
35
Q
- O3 reacts with CH2=CH2 to form ozonide. On hydrolysis
it forms which of the following?
a) Ethylene oxide
b) HCHO
c) Ethylene glycol
d) Ethyl alcohol
A
b) HCHO
35
Q
- Acetophenone is prepared from which reaction?
a) Rosenmund reaction
b) Sandmayer reaction
c) Wurtz reaction
d) Friedel craft reaction
A
d) Friedel craft reaction
36
Q
- Which one of the following compounds is prepared in
the laboratory from benzene by a substitution reaction?
a) Glyoxal
b) Cyclohexane
c) Acetophenone
d) Hexabromo cyclohexane
A
c) Acetophenone
37
Q
- Which of the following compound gives a ketone with
Grignard reagent?
a) Formaldehyde
b) Ethyl alcohol
c) Methyl cyanide
d) Methyl iodide
A
c) Methyl cyanide
38
Q
- Dry heating of calcium acetate gives which of the
following?
a) Acetaldehyde
b) Ethane
c) Acetic acid
d) Acetone
A
d) Acetone
39
Q
- Isopropyl alcohol on oxidation gives which of the
following?
a) Acetone
b) Acetaldehyde
c) Ether
d) Ethylene
A
a) Acetone
40
Q
- Propyne on hydrolysis in presence of HCl and
HgSO4gives which of the following?
a) Acetaldehyde
b) Acetone
c) Formaldehyde
d) Acetophenone
A
b) Acetone
41
Q
- The oxidation of toluene to benzaldehyde by chromyl
chloride is called as which of the following?
a) Cannizzaro reaction
b) Wurtz reaction
c) Etard reaction
d) Reimer-Tiemann reaction
A
c) Etard reaction
41
Q
- Benzaldehyde can be prepared by oxidation of toluene
by which of the following reagent?
a) Acidic KMnO4
b) K2Cr2O7
c) CrO2Cl2
d) basic KMnO4
A
c) CrO2Cl2
42
Q
- The oxidation of benzyl chloride with lead nitrate gives
which of the following compound?
a) Benzaldehyde
b) Benzyl alcohol
c) Benzoic acid
d) p-chlorobenzaldehyde
A
a) Benzaldehyde
43
Q
- Which of the following is the commercial method of
preparation of benzaldehyde?
a) Oxidation of toluene
b) Oxidation of benzyl chloride
c) Oxidation of benzyl alcohol
d) Etard reaction
A
c) Oxidation of benzyl alcohol
44
Q
- Which of the following is the not a method of
preparation of benzaldehyde?
a) Gattermann Koch synthesis
b) Etards Reaction
c)Stephan’s reaction
d) Oxidation of secondary alcohol
A
d) Oxidation of secondary alcohol
44
Q
- Partial reduction of phenyl cyanide with stannous
chloride and passing dry HCl gas in ether solution followed
by hydrolysis of the aldimine stannic chloride with water
to form benzaldehyde is called as which of the following
method of preparation of benzaldehyde?
a) Gattermann Koch synthesis
b) Etards reaction
c) Stephan’s reaction
d) Gattermann reaction
A
c) Stephan’s reaction
45
Q
- What reagents will be used in the preparation of
benzaldehyde via Gattermann Koch synthesis?
a) Carbon dioxide and HCl
b) Carbon monoxide and HCl
c) Oxygen and H2SO4
d) Carbon monoxide and H2SO4
A
b) Carbon monoxide and HCl
45
Q
- Formation of aromatic ketone forms from benzene by
CH3COCl?
a) Friedal craft alkylation
b) Friedal craft dealkylation
c) Friedal craft acylation
d) Friedal craft hydroxyalkylation
A
c) Friedal craft acylation
45
Q
- Which of the following cannot be used in formation of
benzaldehyde by Grignard reagent?
a) HCN
b) Carbon monoxide
c) Ethyl format
d) HNC
A
c) Ethyl format
46
Q
- Ozonolysis of styrene will lead leads to formation of
benzaldehyde along which compound?
a) O2
b) H2O2
c) HCHO
d) H2O2 and HCHO
A
c) HCHO
47
Q
- Aromatic ketones were synthesized from aromatic
compounds via liquid‐phase oxidation at 60 °C and 1 atm
over vanadium‐containing which catalyst?
a) MCM-41
b) MCM-48
c) ZSM-5
d) ZK-5
A
a) MCM-41
47
Q
A
47
Q
- What is the laboratory method for the formation of
benzaldehyde?
a) Gattermann Koch synthesis
b) Etards reaction
c) Stephan’s reaction
d) Oxidation of benzyl chloride
A
d) Oxidation of benzyl chloride
47
Q
- What will be the product for the given reaction?
a) Propanone
b) Acetophenone
c) Diphenylmethanone
d) Aliphatic and aromatic
A
d) Aliphatic and aromatic
48
Q
- Which of the following cannot be used as reactant in
preparation of aromatic ketones from diazonium salt?
a) formaldoxime
b) Acetaldoxime
c) propionaldoxime
d) Terpernes
A
d) Terpernes
49
Q
- Aldehydes have which type of smell?
a) Fish like smell
b) Bitter almond smell
c) Pungent smell
d) Rotten egg like smell
A
c) Pungent smell
50
Q
- What is the name of the process in which aldehyde get
oxidise in presence of air?
a) Calcination
b) Autoxidation
c) Cannizzaro reaction
d) Baeyer villiger oxidation
A
b) Autoxidation
51
Q
- Which of the following aldehyde shows oligomerization?
a) Acetaldehyde
b) Propanal
c) Butanal
d) Benzaldehyde
A
a) Acetaldehyde
51
Q
- What will be the product if we add water to the
aldehyde?
a) Alcohols
b) Epoxides
c) Geminal diols
d) Peroxides
A
c) Geminal diols
52
Q
- In Infrared spectroscopy, at what wave number will
band of CO bond of aldehyde will occur?
a) 1500 cm-^1
b) 1495 cm^-1
c) 1965 cm^-1
d) 1700 cm^-1
A
d) 1700 cm^-1
52
Q
- What is the chemical shift of formyl hydrogen in
aldehyde?
a) 6
b) 7
c) 8
d) 9
A
d) 9
52
Q
- Which of the following aldehyde is present as gas?
a) Acetaldehyde
b) Formaldehyde
c) Butyraldehyde
d) Benzaldehyde
A
b) Formaldehyde
53
Q
- Which of the following compound has more boiling
point than aldehyde?
a) Alcohol
b) Alkanes
c) Ketones
d) Ether
A
a) Alcohol
54
Q
- Which of the following compound has more boiling
point than ketones?
a) Alcohol
b) Alkanes
c) Aldehyde
d) Ether
A
a) Alcohol
54
Q
- Which of the following is the characteristic smell of
benzaldehyde?
a) Fish like smell
b) Bitter almond like
c) Pungent smell
d) Rotten egg like smell
A
b) Bitter almond like
55
Q
- Which of the following aldehyde is most soluble in
water?
a) Acetaldehyde
b) Formaldehyde
c) Butyraldehyde
d) Benzaldehyde
A
b) Formaldehyde
56
Q
- Which of the following has highest boiling point?
a) 2-hexanone
b) 2-pentanone
c) butanoic acid
d) 3-methyl-2-butanone
A
d) 3-methyl-2-butanone
56
Q
- Which of the ketones are used in nail paint removers?
a) Cyclopropenone
b) Isopropyl acetone
c) butanone
d) Methyl ethyl ketone
A
b) Isopropyl acetone
57
Q
- Which of the following is more volatile?
a) Carboxylic acid
b) Alcohol
c) Ketones
d) Aldehyde
A
c) Ketones
58
Q
- Why ketones are volatile in nature?
a) Due to molecular weight
b) Hydrogen bonding
c) Neither hydrogen bond donor nor acceptor
d) Weak bonding
A
c) Neither hydrogen bond donor nor acceptor
59
Q
- For C6H5CHO which of the following is incorrect?
a) On oxidation it yields benzoic acid
b) It is used in perfumery
c) It is an aromatic aldehyde
d) On reduction yields phenol
A
d) On reduction yields phenol
59
Q
- Why ketones are used as solvent?
a) Due to molecular weight
b) Hydrogen bonding
c) Neither hydrogen bond donor nor acceptor
d) Weak bonding
A
c) Neither hydrogen bond donor nor acceptor
60
Q
- Which of the following is the used as solvent in gums,
resins, nitrocellulose?
a) Cyclopropenone
b) Isopropyl acetone
c) butanone
d) Methyl ethyl ketone
A
c) butanone
60
Q
- Which of the following is also known as model cement?
a) Cyclopropenone
b) butanone
c) Isopropyl acetone
d) Methyl ethyl ketone
A
c) Isopropyl acetone
61
Q
- Reduction of Aldehydes to hydrocarbon take place in
the presence of which of the following?
a) Zn amalgam and HCl acid
b) Pd/BaSO4
c) Anhydrous AlCl3
d) Ni/Pt
A
a) Zn amalgam and HCl acid
62
Q
- Which of the following is a toxic ketone?
a) butanone
b) Acetone
c) Methyl ethyl ether
d) Methyl vinyl ketone
A
d) Methyl vinyl ketone
62
Q
- Which of the following cannot be used for the
characterisation of ketone by spectroscopy?
a) 1H NMR
b) Infra-red spectrum
c) 13^C NMR
d) UV spectroscopy
A
a) 1H NMR
63
Q
- During a reaction of Tollens test, the formation of mirror
inside the tube is due to which of the following?
a) silver ions
b) silver atoms
c) silver compounds
d) silver nitrate
A
b) silver atoms
64
Q
- Which of the following compound will undergo self
aldol condensation in the presence of cold dilute alkali?
a) C6H5CHO
b) CH3CH2CHO
c) CH≡C−CHO
d) CH2=CH−CHO
A
b) CH3CH2CHO
65
Q
- Acetaldehyde cannot show which of the following test?
a) Iodoform test
b) Lucas test
c) Benedict’s test
d) Tollen’s test
A
b) Lucas test
65
Q
- Which of the following will not undergo aldol
condensation?
a) Acetaldehyde
b) Propanaldehyde
c) Benzaldehyde
d) Trideuteroacetaldehyde
A
c) Benzaldehyde
66
Q
- What will be the product if aldehyde reacts with NaOH?
a) Benzyl alcohol
b) Benzoic alcohol
c) Hydrobenzamide
d) Cinnamic acid
A
a) Benzyl alcohol
67
Q
- Which of the following reaction is not shown by
ketones?
a) reaction with HCN
b) reaction with NaHSO3
c) reaction with 2,4-Dinitrophenyl hydrazine
d) reaction with Fehling solution
A
d) reaction with Fehling solution
67
Q
- To distinguish between formaldehyde and
acetaldehyde, we require which of the following reagent?
a) Tollen’s reagent
b) Fehling’s solution
c) Schiff’s reagent
d) Caustic soda solution
A
d) Caustic soda solution
68
Q
- Acetaldehyde reacts with C2H5MgCl the final product is
which of the following?
a) An aldehyde
b) A ketone
c) A primary alcohol
d) A secondary alcohol
A
d) A secondary alcohol
68
Q
- If formaldehyde and KOH are heated, then we get which
of the following compound?
a) Acetylene
b) Methane
c) Methyl alcohol
d) Ethyl formate
A
c) Methyl alcohol
69
Q
- Which of the following has most acidic hydrogen?
a) 3-Hexaone
b) 2,4- Hexanedione
c) 2, 3-Hexanedione
d) 2, 5-Hexanedione
A
b) 2,4- Hexanedione
70
Q
- Acetone reacts with HCN to form a cyanohydrin. It is an
example of which type of reaction?
a) electrophilic addition
b) electrophilic substitution
c) nucleophilic addition
d) nucleophilic substitution
A
c) nucleophilic addition
71
Q
- Which of the following will fail to react with potassium
dichromate and dilute sulphuric acid?
a) Ethyl alcohol (ethanol)
b) Acetaldehyde (ethanal)
c) Secondary propyl alcohol (2-propanol)
d) Acetone (propanone)
A
d) Acetone (propanone)
72
Q
- The product(s) obtained via oxymercuration
(HgSO4+H2SO4) of 1-butyne would be what?
a) CH3CH2COCH3
b) CH3CH2CH2CHO
c) CH3CH2CHO + HCHO
d) CH3CH2COOH + HCOOH
A
a) CH3CH2COCH3
72
Q
- Which of the following statements regarding chemical
properties of acetophenone are wrong?
I. It is reduced to methyl phenyl carbinol by sodium and
ethanol
II. It is oxidised to benzoic acid with acidified KMnO4
III. It does not undergo iodoform electrophilic substitution
like nitration at meta position
IV. It does not undergo iodoform reaction with iodine and
alkali
a) I and II
b) II and IV
c) III and IV
d) I and III
A
c) III and IV
72
Q
- Which of the following reactions give benzophenone?
a) 2C6H6 + CCl4 + AlCl3 + H2O→
b) C6H6 + C6H5COCl + AlCl3→
c) o−CH3C6H4COC6H5 + Heat→
d) o−HOOC−C6H4−COC6H5 + Cu260oC→
A
b) C6H6 + C6H5COCl + AlCl3→
73
Q
- Benzophenone does not react with which of the
following compound?
a) RNH2
b) SO3
c) NaOH
d) Na2CO3
A
d) Na2CO3
73
Q
- The conversion of acetophenone to acetanilide is best
accomplished by using which reaction?
a) Backmann rearrangement
b) Curtius rearrangement
c) Lossen rearrangement
d) Hofmann rearrangement
A
a) Backmann rearrangement
73
Q
- What type of reaction takes place upon treatment of a
ketone with HCN to form a cyanohydrin?
a) Nucleophilic addition
b) Nucleophilic substitution
c) Electrophilic addition
d) Electrophilic substitution
A
a) Nucleophilic addition
