General Organic Chemistry (GOC) Fundamental Concepts of Organic Chemistry 1. Which of the following alkanes has neither secondary nor tertiary hydrogen? A. iso-Butane B. iso-Pentane C. Pentane D. neo-Pentane Answer. D 2. How many cyclic isomers is possible for C 6 H 12 ? A. 3 B. 2 C. 4 D. 5 Answer. D 3. Which of the following Group is used as Anti Freeze in Motor Radiator? A. Alcohol B. Ketone C. Alkane D. Alkyne Answer. 4. An electrophile is a/an A. Lewis base B. Lewis acid C. electron deficient species D. Both A and B Answer. B 5. Geometrical isomerism exist due to the presence of A. single bond between C and C B. double bond between C and C C. triple bond between C and C D. All the above
Transcript
General Organic Chemistry (GOC)
Fundamental Concepts of Organic Chemistry1. Which of the following alkanes has neither secondary nor tertiary hydrogen?
A. iso-ButaneB. iso-PentaneC. PentaneD. neo-Pentane
Answer. D
2. How many cyclic isomers is possible for C6H12?A. 3B. 2C. 4D. 5
Answer. D
3. Which of the following Group is used as Anti Freeze in Motor Radiator?A. AlcoholB. KetoneC. AlkaneD. Alkyne
Answer.
4. An electrophile is a/anA. Lewis baseB. Lewis acidC. electron deficient speciesD. Both A and B
Answer. B
5. Geometrical isomerism exist due to the presence ofA. single bond between C and CB. double bond between C and CC. triple bond between C and CD. All the above
Answer. B
6. In the case of o-chlorophenol there existA. intramolecular hydrogen bondingB. intermolecular covalent bondingC. no hydrogen bondingD. both inter and intramolecular hydrogen bonding
11. Two or more compounds having the same number and kind of atoms and same molecular weight are calledA. IsobarsB. IsotonesC. IsomersD. Isochors
Answer. C
12. The process of separating a racemic mixture into optical isomers is known asA. DissolutionB. IsomerisationC. ResolutionD. Pasteurization
Answer. C
13. Sulphur trioxide isA. a Lewis baseB. a baseC. nucleophileD. an electrophile
Answer. D
14. In neopentane the number of primary carbon atoms areA. 4B. 5C. 2D. 1
Answer. A
15. Which of the following type of isomerism is found in the members of the same homologous series?A. Functional isomerismB. Position isomerismC. MetamerismD. None of these
Answer. C
16. Hetrolytic fission results in the formation ofA. ElectrophileB. free radicalsC. electrophile and nucleophileD. electrons
Answer. C
17. In acetylene C-C-H bond angle isA. 144 degreeB. 180 degreeC. 90 degreeD. 96 degree
Answer. B
18. The forces between the molecules of a non-polar compounds areA. Van der Walls forcesB. ionic bondingC. hybrid forcesD. dipole forces
Answer. A
19. Carbanions are isoelectronic withA. ethersB. alcoholsC. aminesD. carboxylic acids
21. The number of possible metamers of pentonone areA. 5B. 1C. 3D. 6
Answer. C
22. The tetrahedral nature of the carbon was given byA. Vant HoffB. LewisC. Le Bell and Vant HoffD. None of the above
Answer. C
23. Decomposition of a compound by the action of heat is known asA. decompositionB. knockingC. smeltingD. pyrolysis
Answer. D
24. The most volatile amongst the following isA. p-nitrophenolB. m-nitrophenolC. o-nitrophenolD. none of these
Answer. A
25. Different arrangement of atoms that can be converted into one another by rotation about single bonds are calledA. trans-isomersB. conformationC. enantiomersD. None of these
Answer. B
26. A nucleophile is aA. Lewis baseB. Lewis acidC. neither a Lewis acid nor a Lewis baseD. both A & B
Answer. A
27. Chain isomers differ w.r.t.A. position of substituentB. position of functional groupC. chemical effectD. root word
Answer. D
28. Alcohols are isomeric withA. ketonesB. ethersC. aminesD. acids
Answer. B
29. The total no. of possible isomers of ethane areA. 10B. 20C. 4D. Infinite
Answer. D
30. Which of the following carbonium ions is the most stable?A. triphenyl methylB. diphenyl methylC. benzylD. All the above
Answer. A
31. Liquids whose molecules are held together by hydrogen bonds are calledA. associated liquidsB. aprotonic solventsC. primary liquidD. hydrated liquids
Answer. A
32. In substitution reactions of tertiary halide, the ionisation of halogen atom as negative ion is facilitated byA. electron attracting groupB. electron repelling groupC. free radicalD. All the above
Answer. B
33. Which of the following represents the iso-butyl radical?A. EthaneB. MethaneC. EthyneD. Benzene
Answer. D
34. Which of the following has zero dipole moment?A. 1-ButeneB. cis-2-ButeneC. trans-2-ButeneD. 2-Methyl-1-propene
Answer. C
35. Which of the following alkanes has neither secondary nor tertiary hydrogen?A. iso-ButaneB. iso-PentaneC. PentaneD. neo-Pentane
Answer. D
36. The no. of possible isomers of 1, 2-dichloroethane areA. 2B. 3C. 4D. Infinite
Answer. A
37. The IUPAC name of isoprene is A. 1, 3-ButadieneB. 2-Methyl-1, 3-butadieneC. 2-Methyl-1-buteneD. 3-Methyl-1-butene
Answer. B Isoprene
38. Which of the following compounds is chiral?A. 2-chloro-2-methyl butaneB. 3-chloro hexaneC. 2-chloro pentaneD. 1-chloro pentane
Answer. C
39. Which of the following compounds contains maximum number of tertiary hydrogen atoms?A. n-HexaneB. 2-2-Dimethyl butaneC. 2, 3-Dimethyl butaneD. 2-Methyl pentane
Answer. C
40. The IUPAC name of crotyl chloride isA. 1-Chloro-1-buteneB. 1-Chloro-2-buteneC. 2-Chloro-2-buteneD. 3-Chloro-1-butene
Answer. B
41. The secondary suffix in the IUPAC names of ketones isA. -alB. -oneC. -olD. –oate
Answer. B
42. Which of the following is optically active?A. isobutyl alcoholB. sec butyl alcoholC. tert butyl alcoholD. p-butyl alcohol
Answer. B
43. IUPAC name of propargyl alcohol isA. Prop-2-yn-1-olB. Prop-2-en-1-olC. Prop-1-en-2-olD. Prop-1-yn-2-ol
Answer. A
44. The number of pi bonds in isoprene isA. 2B. 3C. 1D. 0
Answer. A
45. Molecules that are not superimposable on their mirror images areA. AchiralB. SymmetricC. AsymmetricD. Chiral
Answer. D
46. IUPAC name of propargyl alcohol isA. Prop-2-yn-1-olB. Prop-2-en-1-olC. Pro-1-en-2-olD. Prop-1-yn-2-ol
Answer. A
47. In iso-octane (2, 2, 4-trimethylpentane), the number of tertiary hydrogen atoms isA. OneB. TwoC. ThreeD. Four
Answer. A
48. Paraffins is the common name used forA. AlkanesB. AlkenesC. AlkynesD. Arenes
Answer. A
49. In iso-octane (2, 2-4-trimethylpentane), the number of primary hydrogen atoms isA. 12B. 15C. 13D. 14
Answer. B
50. Which of the following molecules does not contains any secondary hydrogen atom?A. n-PentaneB. neo-PentaneC. neo-HexaneD. iso-Pentane
Answer. B
51. Diastereomers are a pairA. stereoisomers that cannot be separated from each otherB. stereoisomers that are not minor image of each otherC. stereoisomers that have identical chemical propertiesD. stereoisomers that are minor image of each other
Answer. B
52. Which of the following have zero dipole moment?A. 2 methyl propaneB. trans-2-buteneC. cis-2-buteneD. butane-1
Answer. B
53. All the members of a homologous series have sameA. Molecular massB. Molecular formulaC. Empirical formulaD. General molecular formula
Answer. C
54. The IUPAC name of allylene isA. PropyneB. PropeneC. 2-ButyneD. 1-Butyne
Answer. C
55. Which of the following is the functional isomer of methyl acetate?A. Ethyl acetateB. Propanoic acidC. Ethyl formateD. Propanone
Answer. B
56. Which of the following compounds contains maximum number of tertiary hydrogen atoms?A. n-HexaneB. 2-2-DimethylbutaneC. 2, 3-DimethylbyteneD. 2-Metylpentane
Answer. C
57. What is not true about homologous series?A. All the members have similar chemical propertiesB. They have identical physical propertiesC. They can be represented by a general formulaD. Adjacent members differ in molecular mass by 14
Answer. B
58. Optical activity in a compound can be detected by means ofA. VoltmeterB. PotentiometerC. AmmeterD. Polarimeter
Answer. D
59. Which of the following compounds has least dipole moment?A. 1, 2-DichlorobenzeneB. 1, 3-DichlorobenzeneC. 1, 4-DichlorobenzeneD. All have same dipole moment
Answer. C
60. An example of conjugated diene isA. 1, 4-PentadieneB. 1, 5-HexadieneC. 1, 2-ButadieneD. 1, 3-Pentadiene
Answer. D
61. Number of sec-H atoms in iso-butane isA. 1B. 9C. 4D. None
Answer. D
62. Homolytic Fission is :A. SymmetricalB. UnsymmetricalC. BothD. None
Answer. A
63. Alcohols are resistant to oxidation :A. PrimaryB. SecondaryC. TertiaryD. All
Answer. C
64. When alcohol is dehydrated ar 140 ͦC the produxt obtnd is : A. EthaneB. Diethyl etherC. IodoformD. None
Answer. B
65. _____ are formed in homolytic bond fission :A. Free radicalsB. IonsC. Both A & BD. None
Answer. A
66. The factors which favor homolytic fission are :A. Electro negativity difference is less or zeroB. Gaseous stateC. Light & ElectricityD. All of the above
Answer. D
67. Unsymmetrical bond fission is favored in :A. HomolysisB. HeterolysisC. BothD. None
Answer. B
68. Direction of polar reactions is from :A. Nucleophile to electrophileB. Electrophile to nucleophileC. Source to sinkD. Both A & C
Answer. D
69. Which of the following is nucleophile :A. Cl –B. H2OC. NH3D. All
Answer. D
70. In tertiary Alcohols one C having OH group is attached to mainly how many more C :A. 1B. 2C. 3D. 4
Answer. C
71. In combustion of methane the amount of energy released is :A. 891 kJ/molB. 892 kJ/molC. 893 kJ/molD. None
Answer. A
72. Which of the following is electrophile :A. Cl2
B. Cl-C. Br2
D. Both A & C
Answer. D
73. Out of the following which reacts with alkanes in presence of ultra violet rays :A. ChlorineB. BromineC. IodineD. FlourineE. Both A & BF. Both C & DG. All
Answer. E
74. The step in which chlorine free radical reacts with methane and a methyl free radical is obtained is termed as :A. InitiationB. PropagationC. TerminationD. NoneAnswer. B
75. Combustion of alkanes is highly ____ so it requires ____ for initiation :A. Endothermic & nothingB. Exothermic & nothingC. Endothermic & flameD. Exothermic & spark
Answer. D
76. Which of the following reaction is not synthetically important :A. Free radical reaction of alkanesB. Halogenation of alkanesC. Both A & BD. None
Answer. C
77. During dehydrohalogenation of alkyl halides the hydrogen is removed from the C which is attached to :A. RB. XC. R or XD. None
Answer. A
78. The catalysts used for dehydration of alcohol are :A. Al2O3
B. H2SO4
C. H3PO4
D. All
Answer. D
79. The temperature required for primary alcohol to form ethene is :A. 150 ͦCB. 180 ͦCC. 140-170 ͦCD. All of the above
Answer. D
80. The catalytic hydrogenation of alkenes is at 1-5 atm pressure and giving 120kJ/mol per double bond and giving ______ compound :A. UnsaturatedB. SaturatedC. Depends upon given conditionsD. None
Answer. B
81. The catalysts used for catalytic hydrogenation of alkenes are :A. Pt,Pd,NiAl2O3B. Pt, Pb, Raney NickleC. Pt,Pd,NiD. None
Answer. C
82. For hydration of ethene the intermediate compound is :A. Methyl hydrogen sulphateB. Ethyl Hydrogen SulphateC. Ethyl hydrogen NitrateD. None
Answer. B
83. For hydration of alkanes the optimum temperature is :A. 140 oCB. 100 oCC. 80 oCD. None
Answer. B
84. As the bromine reaches near the alkenes which becomes polarized :A. AlkeneB. Bromine MoleculeC. Both A & BD. None
Answer. B
85. 1% dilute alkaline KMnO4 solution is a :A. Strong oxidizing agentB. Mild oxidizing agentC. Weak oxidizing agentD. None
Answer. B
86. Polymerization of ethane at 400 oC and 100 atm Pressure produces :A. PolyethaneB. PolyethyleneC. PolyethanolD. None
Answer. B
87. Markovnikov's rule follow :A. Addition of unsynnetrical reagent to an unsymmetrical alkeneB. Addition of unsynnetrical alkene to an unsymmetrical alkeneC. Addition of unsynnetrical reagent to an unsymmetrical reagentD. Addition of unsynnetrical alkene to an unsymmetrical alkane
Answer. C
88. Butene can have:A. Geometrical isomerismB. 2-position isomersC. Both A & BD. All structural isomers
Answer. C
89. Geometrical isomerism is shown by :A. AlkanesB. AlkenesC. AlkynesD. Both A & C
Answer. B
90. Anthracene has how many benzene rings?A. 2B. 3C. 4D. 5
Answer. B
91. Pentane has how many isomers :A. 2B. 3C. 4D. 5
Answer. B
92. Oxidation of alkenes in presence of hot KMnO4 solution the products obtained can be :A. KetonesB. Carboxylic acidsC. Carbon dioxideD. All
Answer. D
93. All sp2 orbitals in benzene ring are :A. in different planesB. In same planesC. CoplanarD. Both B & C
Answer. D
94. Diffused or delocalized electron cloud is formed by overlapping of :A. one 2py & one 2pz orbitalsB. Both 2pz orbitalsC. Any 2 orbitalsD. None
Answer. B
95. The stability of benzene ring is compared with :A. CyclohexeneB. 1,3 cyclohexadieneC. 1,3,6 cyclohexatrieneD. None
Answer. D
96. In kekule’s structure the bond lengths between different carbons are as :A. Between C1-C4B. Between C2-C5C. Between C3-C6D. None
Answer. D
97. During halogenation, nitration, Friedal craft’s reactions of benzene the direction of reaction is :A. Benzene ring to electrophileB. Electrophile to benzene ringC. Benzene ring to nucleophileD. Nucleophile to benzene ring
Answer. A
98. The acylation of benzene ring produces :A. Methy benzeneB. Ethyl BenzeneC. AcetophenoneD. Alky BenzeneAnswer. C
99. Which of the followoing are electrophile :A. AlCl3B. FeBr3C. H2SO4D. Both a & bE. All
Answer. E
100. The characteristic of SN2 reactions are :A. Change of hybridization from sp3 tetrahedral to sp2 planarB. Attack of weak leaving groupC. Removal of NucleophileD. Both a & cE. All
Answer. D
101. The order of SN2 reactions for primary alkyl halides is :A. 1B. 2C. 3D. 4
Answer. B
102. There is another site present on alkyl halides on which nucleophile can attack during B-Elimination reaactions :A. a-HB. b-HC. a-CD. b-C
Answer.
42-The rate of E1 reactions depend upon :a)The concentration of substrateb)Conc. Of nucleophilec)Conc of substrate as well as nucleophiled)None
43-Which one of the following is not a nucleophile :a)H2Ob)H2Sc)BF3d)NH3
44-The benzene molecule contains :a)Three double bondsb)two double bondsc)One double bondd)Delocalized pi electron charge
45-During nitration of benzene active nitrating agent is :a)NO3b)NO2+c)NO2-d)HNO3
46-Formula of chloroform is :a)CH3Clb)CCl4c)CH2Cl2d)CHCl3
47-Optimum temperature for the fermentation is :a)25-35 oCb)35-45 oCc)15-25 oCd)None
48-The product obtained after re-Distilation of 95% alcohol in presence of CaO is called :a)rectified spiritb)Absolute alcohol
c)Methyleted spiritd)None
49-For denaturation of alcohol which can be used :a)Methanolb)Ethanolc)Pyridined)Acetonee)Allf)All except ethanol
50-When NH3 reacts with alcohol then the catalyst used is :a)ZnCl2b)ThO2c)Pyridined)None
52-Upon oxidation of 2-methyl 2 propanol the product obtained is :a)Ethanalb)Propanonec)2-Methylpropaned)None53-When ethanol reacts with Phospho pentachloride then the products include :a)HClb)HOClc)H3PO3d)None
54-The formulae for iodoform is :a)CHI3b)CHBr3c)CH2OHId)None
55-The reason why phenol is more acidic is :a)Delocalization of electronic cloud of benzene ringb)Ka = 1.3 x 10^-10c)delocaliztion of ?ve charge in ringd)Both b & ce)All
56-Phenol reacts with dilute HNO3 at 25oC to give :
a)TNTb)Picric acidc)Both a & bd)None
57-Rectified spirit contains alcohol about :a)14%b)95%c)12%d)20%
58-Esterification of alcohols is___ with removal of water :a)Irreversibleb)Reversiblec)Maybe bothd)None
59-CH3COCH2CH3 is ;a)2Propanoneb)Butanonec)Acetophenoned)None
60-The IUPAC name of (CH3)2 CH CH2 OH is :a)2,3methyl 2 propanolb) 2,4methyl 2 propanonec) 1,3ethyl 3 propanold) 2,3methyl 1 propenol61-In industry for preparation of formaldehyde the optimal conditions are :a)Pt-Asbestosb)300oCc)Bothd)None
62-Acetaldehyde is prepared in the laboratory by the oxidation of ethyl alcohol with :a)Alkaline sodium dichromate solutionb)Acidfied KMnO4 Solutionb)Alkaline KMnO4 Solutiond)None
63-Acidified aqueous hydrolysis of acetaldehyde cyanohydrin gives :a)2-Hydroxypropanoic acidb)Lactic acidc)alpha hydroxyl acid containing one C more than starting aldehyde or ketoned)All
64-Which one of the following is a good source of Cyanide ion :a)HCN
b)KCNc)NH4CNd)LiCN
65-Tryosine has ____ taste :a)Sweetb)Sourc)Cheesed)None
66-Which of the following pair of amino acids have sec. amino group :a)Glycine & Prolineb)Histidine & Glutamic acidc)Lysine & valined)Proline & Histidine
67-The acidic character of amino acid is due to :a)COOHb)COO-b)NH2c)NH3+
68-The catalyst used in the reaction of a-bromoacid with ammonia is :a)Kb)Pc)Lid)H
69-During strecker synthesis the intermediate compound obtained is :a)Ammonium ionb)Ammonium Chloridec)Ammonium nitriled)None
70-There is a peptide molecule which is said to have molecular mass 11,312,it is termed as :a)Polypeptideb)Proteinc)Both a & bd)None
71-Addition polymerization is catalyzed by :a)Thermal decomposition of organic peroxidesb)Photochemical decomposition of organic peroxidesc)Bothd)None
72-Condensation polymerization involves the removal of :a)Water
73-Polysterene is used in :a)Pipesb)Gramophone recordsc)Clothingd)Cosmetic bottles
74-Plyamide resisns include :a)Nylon -6,9b)Nylon -3,6c)Nylon -9,9d)Nylon- 6.6
75-Glucose is also termed as :a)Dextroseb)Grape Sugarc)Blood Sugard)Alle)Both b & c
76-Amylopectin has glycosidic linkages as :a)1,2b)1,4c)1,2 & 1,4d)1,4 & 1,6
77-Woody trees are generally ___% celloluse :a)10%b)20%c)30%d)40%e)None
78-The saponification number for glycerol triplemitate is :a)206b)208c)210d)212
79-In DNA the sugar is :a)1-Deoxyriboseb)2-Deoxribosec)3-Deoxyribosed)None
80-The acid chloride strength is of the order of :a)CH3COOCl > CH3COOCl2 > CH3COOCl3 > CH3COOCl4b) CH3COOCl < CH3COOCl2 > CH3COOCl3 < CH3COOCl4c) CH3COOCl < CH3COOCl2 <CH3COOCl3 <CH3COOCl4d) CH3COOCl <CH3COOCl2 ,CH3COOCl3 > CH3COOCl4
(Acetic acid, HC2H3O2 Ka = 1.8?10?5
Chloroacetic acid, HC2H2ClO2 Ka = 1.4?10?3
Dichloroacetic acid, HC2HCl2O2 Ka = 5.5?10?2
Trichloroacetic acid, HC2Cl3O2 Ka = 3.0?10?1 )
81-The steps for the formation of ester are :a)3b)4c)5d)None
82-In reaction with SOCl2 which two atoms get polarized due to presence of Chloride ion :a)C of CH3 and Ob)Alpha C and O with alpha Cc)Alpha C and adjacent O on its rightd)Polarization is not possible
83-The efficient method to obtain carboxylic acid is :a)Methyl Ketone to Carboxylic acidb) Acetaldehyde to Carboxylic acidc) Formaldehyde to Carboxylic acidd)None
84-In holoform reaction carboxylic acid contains ____ C atoms than starting aldehyde and ketone :a)Moreb)Moderatec)Lessd)None
85-2,4 DNPH are usually :a)liquidsb)Crystalline solidsc)gasesd)None
87-During oxidation of aldehydes the H atom attached to ___ is oxidized :a)Methylb)Carbonyl groupc)Cd)None
88-The alkoxide ion is protonated with __ to give an alcohol :a)H3O+b)H2Oc)OH-d)MH4OH
89-During oxidation of ketones :a)The carbon atom joined to the __ number of H is usually oxidized :a)Smallerb)mediumc)greaterd)None
90-In case of symmetrical ketones ___ C atoms adjacent to the carbony group is oxidized :a)Oneb)Twoc)Threed)Four
91-During oxidation of unsymmetrial ketones the carbonyl group goes with:a)Larger alkyl groupb)Smaller alkyl groupc)Separatesd)None
92-Formula for tollen?s reagent is :a)Ag(NH3)2b)AgNH3c)AgNH2OHd)[Ag(NH3)2]OH
93-In tollen?s test alongwith silver mirror we get :a)H2Ob)NH3c)Bothd)None
94-Fehling solution is :
a)An alkaline solution containing cupric tartrate complex ionb) An acidic solution containing cupric tartrate complex ionc) An alkaline solution containing cupric citrate complex iond)None95-Formalin is :a)40% formaldehyde in 50 % waterb) 30% formaldehyde in60 % waterc) 20% formaldehyde in 70 % waterd) 40% formaldehyde in 52 % water
96-Acetone reacts with HCN to form a cyanohydrin,it is an example of :a)Electrophilic additionb)Nucleophilic additionc)Nucleophilic substitutiond)Electrophilic substation
97-Oxalic & Malonic acids are also called as :a)Propanedioic and Etahnedioic acidb)Ethanedioic and Propanedioic acidc)Bothd)None
98-Pthalic acid has how many benzene rings :a)1b)2c)3d)4
99-Ethanol forms formic acid by forming an intermediate product of :a)Aldehydeb)Ethanalc)Methanald)None100-Tollen?s reagent is a :a)Strong oxidizing agentb)Mild oxidizing agentc)Weak oxidizing agentd)None
101-Alkanenitriles will give corresponding carboxylic acids on reaction with :a)Acidsb)Alkaliesc)Bothd)None
102-When carboxylic acids are obtained from oxidation of primary alcohols then the intermediate producs formed are:a)Ketones
b)Aldehydesc)Can be both of the aboved)None
103-When H atom of carboxylic acids is involved in the reactions then one thing will must be formed :a)Hydrogen gasb)H2Oc)Respective Saltsd)All
104-During protonation of carboxylic acid in formation of an ester the carboxylic acid at as :a)Electrophileb)Nucleophilec)Can act as bothd)None
105-The correct formulae for ester is :a)CH3COOC2H5b) CH3COC2H5c) CH3COOC2H5Od) CH2COOC2H5
106-The third step of esterification is :a)Protonation of carboxylic acidsb)Attack of alcoholc)Elimination of H+d)Hydrogen ion transfer
107-The formula for acetamide is :a)CH3COONH2b) CH3COONH3c) CH3CONH2d) CH3COONH
108-Which one of the following is a strong acid :a)Phenolb)Ethanoic acidc)ChloroEthanoic acidd)Alcohol
109-The Abbreviation for glutamic acid is :a)Glab)Glyc)Alad)None
110-Which of the following is a non-polar amino acid :
a)Glycineb)Alaninec)Valined)All111-Carboxylate ion gives the ____ character to amino acid :a)Acidicb)Basicc)Neutrald)None
112-Which of the following are required for Strecker?s synthesis :a)HCNb)Aminec)Formaldehyded)Both a & ce)All
113-The compound formed due to addition of CN is called :a)Amideb)Aminec)Imined)Nitrile
114-The unsaturated amino acids are :a)Histidineb)Glycinec)Lysined)None
115-The secondary amino acids according to your text book are :a)1b)2c)3d)4
116-The cyclic amino acid is :a)Glycineb)Alaninec)Valined)Proline
117-The aliphatic amino acids mentioned in your text book are :a)10b)9c)8d)7
118-Which of the following derivative can not be dorectky prepared from acetic acid :
119-Which of the following is not a fatty acid :a)Propanoic acidb)Acetic Acidc)Pthalic Acidd)Butanoic Acid
120-Acetamide is prepared by :a)Heating Ammonium acetateb)Heating methyl cyanidec)Heating ethyl acteated)The hydrolysis of methyl cyanide
121-Photochemical decomposition of organic peroxides to give free radicals usually :a)Stops the reactionb)Initiates the free radical polymerizationc)Catalyzes the free radical polymerizationd)Nothing happens
122-Condensation polymerization reaction takes place :a)At one side of chainb)At both sides of the chainc)Both are the possibilitiesd)None
123-Condensation polymerizations are generally ___ in nature :a)Neutralb)Acidicc)Basicd)ionic
124-Alcohols which can be used in condensation polymerization for formation of polyester resins are :a)Mono-olsb)Di-olsc)Tri-olsd)Tetra-ols
125-The substitude of sucrose(cane sugar) is is :a)Fructoseb)Dextrosec)Glucosed)None126-Deep blue colour with iodine is given by :
a)Amyloseb)Amylppectinc)Starchd)glycogen
127-Natural starch can have __ amylose and __ amylopectin :a)15% & 85%b)25% & 95%c)Both are possibled)None128-Which of the following forms the branched structure :a)Amyloseb)Amylopectinc)Glycogend)Both b & c
129- Celloluse is special characteristic of :a)Plant kingdomb)Marine lifec)Bothd)None
130-Celloluse is a polymer of :a)alpha D glucoseb)Beta D Glucosec)Glucosed)None
131-The structure of general protein is :a)Quartenaryb)Tertiaryc)Secondaryd)Primary
132-The sequence of amino acids combined in a peptide chain is reffered to as :a)Primary Structureb)Secondary structurec)Tertiary Structured)None
133- Main type of secondary structure of proteins are :a)Alpha Helixb)Beta Strandc)Both d)None134-Hydrophobic interactions are present in ___ of proteins:a)Primary structureb)Secondary structure
c)Tertiary structured)None
135-____ also considered as primary building blocks :a)Fatty Acidsb)Glycerolsc)Sterolsd)Both a & be) All136-The polyunsaturated glycerides would have ___ M.P & B.P :a)Highb)Mediumc)Lowd)None137-Sterols,Vitamin D and terpenes are termed as :a)Compund lipidsb0Associated lipidsc)Derived lipidsd)Both b & ce)All
138-The rate of deterioration depends upon ___ of fats or oils :a)Saturationb)Unsaturationc)Bothd)None
139-The quantity in miligrams(mg) taken for identification of characteristic of fat or oil per specific given amount of fat or oil is of : a)Acid Number & Iodine Numberb)Saponification number and iodine numberc)Acid number & Saponification numberd)Acid number140-____ belong to sterols :a)Ergosterolb)Hormones of adrenal cortexc)Cholesterold)Both a & ce)All
141-Ergosterol can be converted into :a)Ergocalciterolb)Vitamin D1c)Bothd)None
142-Cholesterol is precursor of :a)Ergosterol
b)Steroid Hormonesc)Vitamin D2d)None143-Aromatic compounds are part of :a)Homocyclic compoundsb)Heterocyclic compoundsc)Bothd)None
144-Which of the following is an isomerase :a)Phosphoglyceromutasesb)Phospho transferasec)Proteased)Fumarase
145-During incineration the temperature ranges from :A)900-1000b)1000-1100c)800-1000d)None146-The recycling of plastics is done by :a)Reprocessingb)Depolymerizationc)Transformationd)All147-The main pollutant of leather tanneries in the waste water is due to the salt of :a)Leadb)Barium Sulphatec)Alumd)Nickle sulphate
148-A single chloride free radical can destroy how many ozone molecules :a)100b)100000 c)10000d)10149-Which clogs the gills of a fish :a)Mgb)Cac)Ald)None
150-The ozone layer is ___ high :a)15-40 km highb)25-28 km highc)30 km highd)All
