Download Aim and Scope of Organic Chemistry, Composition

Aim and Scope of Organic Chemistry, Composition of Organic compounds,
Amino acids and proteins
By Dr.Abdus Sattar Anjuman Arts, Science & Commerce College, Bijapur Mob: 9449036507
1.
First organic compound synthesized in the laboratory was
2.
2-Acetooxybenzoic acid is used as
3.
4.
5.
6.
7.
8.
9.
a) CH4
b) CH3-CO-CH3
c) NH2-CO-NH2
d) CH3-COOH
a) antiseptic
b) antibiotics
c) analgesics
d) pesticide
a) RDX
b) HMX
c) DDNP
d) Dynamite
a) Analgesics b) Tranquilizer
c) Antipyretics
d) Antibiotics
a) Antacids
c) Tranquilizer
Urotropine on nitration produces
Which of the following reduces fever?
Drug which is used to reduce anxiety and brings calmness is known as
b) Analgesics
The drug given during hypertension is
d) Antipyretics
a) Chloroxylenol
b) Equinil
c) Aspirin
d) Phenacetin
a) Chloramphenicol
b) Ampicillin
c) Penicillin G
d) UDMH
Pick the odd man out
BHT is used as
a) Sedative
b) Antacid
c) Antioxidant
d) Preservative
a) NaCN
b) NaN3
c) NaSCN
d) NaNO2
a) N2
b) NH3
c) NO2
d) None
a) Nitrogen
b) Ammonium Nitrate c) Cynogen
The fusion of sodium with aniline gives mainly
10. In Kjeldahl’s method, nitrogen present is estimated as
11. In Duma’s method which of the following is estimated
d) Cyno benzene
12. If N & S are present in an organic compound during lassaignes test, then both changes to
a) Na2SO3 & NaCN
b) NaSCN
c) Na2S & NaCN
d) Na2S & NaCNO
c) Sodium nitrite
d) Sodium nitrate
13. In Sodium extract test of organic compounds the nitrogen of an organic compound is converted
into
a) Sodamide
b) Sodium cyanide
14. Lassaigne’s test for the detection of nitrogen fails in case of
a) NH2-CO-NH2
b) NH2-CO-NH-NH2
c) NH2-NH2.2HCL
d) C6H5-NH-NH2.2HCL
15. The compound that does not give a blue colour in Lassiagne’s test is
a) Aniline
b) Glycine
c) Hydrazine
d) Urea
16. In Lassaigne’s test for nitrogen, the blue colour is due to the formation of
a) Potassium Ferrocyanide
b) Sodium cyanide
c) Sodium ferrocyanide
d) Ferri-ferrocyanide
17. In Lassaigne’s test for sulphur in the organic compound with sodium nitroprusside solution the
purple colour formed is due to
a) Na4[Fe(CN)5 NOS]
b) Na3[Fe(CN)5 S]
c) Na2 [Fe(CN)5NOS]
d) Na3[Fe(CN)6]
18. In Carius tube the compound ClCH2 –COOH was heated with fuming HNO3 and AgNO3. After
filteration and washing a white ppt is formed the precipitate is
a) AgCl
b) AgNO3
c) Ag2SO4
d) ClCH2-COOAg
19. Duma’s method involves the estimation of content of nitrogen in the organic compound in the
form of
a) Gaseous NH3
b) Gaseous N2
c) NaCN
d) (NH4)2 SO4
20. An organic compound containing C, H and N gave the following analysis C=40%, H=13.33% and
N=46.67%. What would be its empirical formula?
a) C2H7N
b) C2H7N2
c) CH4N
d) CH5N
a) C5H12
b) C6H14
c) C8H18
d) C7H10
21. An alkane has a C/H ratio of 5.1428 by mass. Its molecular formula is
22. Estimation of 0.5g of an organic compound by liebig’s method increases the weight of potash
bulb by 0.6875g. The percentage of carbon in the compound is
a) 37.5%
b) 60%
c) 40%
d) 30%
23. Catalyst used in Kjeldahl’s method for the estimation of nitrogen is
a) Na
b) Cu
c) Mg
d) Hg
a) Pyridine
b) Aniline
c) Toluidine
d) all of those
a) acidic
b) basic
c) Neutral
d) any one of these
24. Kjeldahl’s method cannot be used for the estimation of nitrogen in
25. Medium of sodium extract by Lassaigne’s method is
26. In Liebig’s method for the estimation of carbon, the CO2 produced is absorbed in the solution of
a) Ca(OH)2
b) Pyrogallol
c) KOH
d) any one of these
27. Red coloured complex ion formed on adding FeCl3 to sodium extract when N and S both are
present in organic compound is
a) [Fe(CN)6]-4
b) [Fe(CNS)]+2
c) [Fe(CNS)2]+
d) Fe4 [Fe(CN)6]3
28. Which of the following is non essential amino acid?
a) Leucine
b) Lysine
a) Simple protein
b) Conjugated protein c) derived protein
29. Keratin is
c) Phenylalanine
30. How many peptide linkages are present in a tetra peptide
a) 1
b) 2
c) 3
d) Proline
d) antibody
d) 4
31. Loss of biological activity by denaturation of protein is due to the
a) Formation of amino acid
b) Loss of primary structure
c) Loss of both primary and secondary structure
d) Loss of both secondary and tertiary structure
32. Which is fight and flight organ?
a) Pituitary
b) Thyroid
33. Enzymes are made up of
a) edible proteins
c) carbohydrates
d) Kidney
b) proteins with specific structure
d) carbohydrates containing nitrogen
34. Which of the following is not a protein?
a) Wool
c) Heart
b) Nail
c) Hair
d) Rayon
35. Which of the following is not the function of proteins?
a) fight against the infection
b) catalyze biological reactions in the body
c) stimulation of physiological activity
d) Transfer of genetic character from parents to offspring (children)
36. Insulin contains _________ amino acids
a) 51
b) 72
c) 86
d) 92
37. Protein contains the main structural feature namely
a) ester linkage
b) ether linkage
38. Proteins are formed by the condensation of
c) peptide linkage
a) amino acids and glycerol
b) α- amino acids
c) β – amino acids
d) α- amino acids and β - amino acids alternately
d) both b and c
39. Which one of the following tests cannot be used in testing proteins?
a) Biuret test
b) Ninhydrin test
40. An example of an acidic amino acid is
c) Mollisch’s test
d) Millon’s test
a) Alanine
b) lysine
c) Phenylalanine
d) aspartic acid
a) lysine
b) cysteine
c) aspartic acid
d) alanine
41. An example of an amino acid containing sulphur is
42. Proteins reacts with conc. HNO3 to produce
a) a violet colour
b) a red colour
43. Insulin is a protein hormone which controls
a) protein metabolism
c) a yellow colour
d) a blue colour
b) fat metabolism
c) carbohydrate metabolism
d) both a and b
44. Contraction of the muscles in the uterus during child birth is due to the action of
a) adrenaline
b) oxytocin
c) insulin
d) globulin
a) pepsin
b) trypsin
c) lipase
d) erepsin
a) a simple protein
b) a hormone protein c) a lipoprotein
d) a chromoprotein
a) starch
b) neutral ferric chloride
d) Fehling’s solution
a) liver
b) spleen
45. The enzyme not involved in protein hydrolysis is
46. Haemoglobin is
47. All amino acids give a purple colour when treated with a solution of
48. Insulin is secreted by the islets langerhans present in
49. Enzyme activity is dependent upon
a) temperature
c) concentration of the substrate
50. Haemoglobin is an iron containing _______
c) ninhydrin
c) pancreas
d) deuodenum
b) pH of the medium
d) all these
a) hormone
b) antibody
a) carbohydrates
b) conjugated proteins
c) α-amino acids
d) animal.fats
a) protein
b) an amino acid
c) a hormone
d) an antibody
51. Zwitter ions are formed from
c) vitamin
52. A biochemical messenger is called
53. Oxytocin contains ___________ amino acids.
a) 30
b) 20
c) 21
d) 8
d) conjugated protein
54. A coenzyme is one which
a) increases the activity of an enzyme
b) is essential for the action of an enzyme
c) is the prosthetic group of an enzyme which is a conjugated protein
d) inhibits the activity of an enzyme
55. A protein present in blood is
a) insulin
b) collagen
c) keratin
56. Nucleoprotein is an example for
a) a derived protein
d) fibrinogen
b) a conjugated protein
c) a hormone
57. Oxytocin is secreted by
d) an enzyme
a) pancreas
b) prostrate gland
a) < 10,000
b) > 10, 000
c) pituitary gland
58. The molecular weight of protein is
c) < 5,000
d) liver
d) 500
59. Three different amino acid molecules condense to form ____________ number of tripeptides.
a) 2
b) 3
c) 1
d) 6
60. An example of a phosphoprotein is
a) Myosin
b) insulin
61. Zwitter ions move in an acid medium towards
62.
a) anode
b) cathode
c) oxytocin
d) casein
c) towards either of them
d) towards none of them
Amino group of an amino acid reacts with nitrous acid, the compound formed is
a) an alcohol
b) an acid
c) an aldehyde
d) an ester
a) a hydrocarbon
b) a primary amine
c) an alcohol
d) ketone
c) proteins
d) α-amino acids
63. Decarboxylation of α-amino acids forms
64. Antigens and also antibodies are
a) lipids
b) carbohydrates
a) Estrogen
b) Insulin
65. The hormones used by the athletes to increase the muscle strength is/are
c) Androgen
d)Both estrogen and androgen
66. The hormones which controls the process of burning of fats, proteins and carbohydrates to
liberate energy in the body is
a) Cortisone
b) Adrenaline
c) Thyroxin
67. Denaturation of proteins takes place in
a) Mouth
b)Stomach
d) Insulin
c)large intestine
d) Liver
68. Helical structure of proteins is stabilized by
a) Peptide bond
b) dipeptide bond
c) hydrogen bond
69. A compound gives both ninhydrin and Molisch’s test. It is
a) a Glycoprotein
b) a carboxylic acid
70. Which enzyme is not present in human system?
a) pepsin
b) lipase
c) cellulase
d) dipole- dipole forces
c) carbohydrates
d) amylase
d) Haemoglobin
ANSWERS KEY TO CET 2011
Q.No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
Answer
c
c
a
c
c
b
d
c
a
b
a
b
b
c
c
d
a
a
b
c
b
a
b
a
b
c
b
d
a
c
d
b
b
d
d
Q.No
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
QUESTOINS
Answer
a
c
b
c
d
b
c
c
b
c
d
c
c
d
d
c
c
d
c
d
b
c
b
d
d
b
a
b
c
d
d
b
c
a
c