Chapter 7
Advanced Problems in Organic Chemistry for Competitive Examinations · 160 exercises
Problem 80
Which of the following is not a biopolymer? (a) Nucleic acid (b) Rubber (c) Protein (d) Starch
3 step solution
Problem 81
Lysergic acid diethylamide (LSD) is (a) antibiotic (b) synthetic fibre (c) psychedelic drug (d) sweetening agent
3 step solution
Problem 82
PVC polymer can be prepared by which of the monomers? (a) \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CHCl}\) (b) \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}=\mathrm{CH}_{2}\) (c) \(\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}_{2}\) (d) \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CH}_{2}\)
3 step solution
Problem 83
Diabetes is detected by testing the urine of a patient usually with (a) Benedict's reagent (b) Nessler's reagent (c) Fenton's reagent (d) Tollen's reagent
4 step solution
Problem 84
Which of the following sets contains only addition polymers? (a) Bakelite, PVC, polyethylene (b) Polyethylene, PVC, acrilon (c) Buna-S, nylon, polybutadine (d) Polyethylene, polypropylene, terylene
7 step solution
Problem 85
Which of the following is an example of azo dye? (a) Malachite green (b) Congo red (c) Martius yellow (d) Indigo
3 step solution
Problem 86
Which of the following is not an example of natural polymer? (a) Leather (b) Silk (c) Wool (d) Nylon
3 step solution
Problem 87
Heroin is a derivative of (a) nicotine (b) morphine (c) cocaine (d) caffeine
4 step solution
Problem 88
Which of the following fibres is not made up of polyamides? (a) Natural silk (b) Artificial silk (c) Wool (d) Nylon
4 step solution
Problem 89
An aldose is converted into its next higher homologue by (a) Amadori rearrangement (b) Wohl's method (c) Killiani's reaction (d) Mutarotation
4 step solution
Problem 90
Nylon is (a) polyethylene methyl acrylate fibre (b) polyamide fibre (c) polythene derivative (d) polyester fibre
4 step solution
Problem 91
Polythene is a resin obtained by polymerisation of (a) butadiene (b) ethylene (c) styrene (d) isoprene
4 step solution
Problem 92
Which of the following is used as an antipyretic?(a) Chloroquine (b) Paracetamol (c) Chloramphenicol (d) LSD
6 step solution
Problem 93
Point out the wrong statement (a) Phenacetin is a very important antibiotic (b) Penicillin was discovered by A. Flemming (c) Chloroquine is an antimalarial drug (d) Ether is an anaesthetic
4 step solution
Problem 94
The aqueous solution of carbohydrate gave a dark blue colour with iodine solution. The carbohydrate is (a) glucose (b) sucrose (c) fructose (d) starch
4 step solution
Problem 95
Aspirin is a \(/\) an (a) anaesthetic (b) antipyretic (c) tranquillizer (d) narcotic
4 step solution
Problem 96
Which one of the following is a protein fibre? (a) Rayon (b) Cotton (c) Silk (d) Polyester
3 step solution
Problem 97
The monomers used in the manufacture of nylon-6, 6 are (a) adipic acid and butadiene (b) sebacic acid and hexamethylene diamine (c) sebacic and butadiene (d) adipic acid and hexamethylene diamine
4 step solution
Problem 98
The antibiotic used for the treatment of typhoid is (a) penicillin (b) terramycin (c) chloramphenicol (d) sulphadiazine
3 step solution
Problem 99
A polyamide synthetic polymer prepared by prolonged heating of caprolactum is (a) glyptal (b) nylon-6 (c) nylon-6, 10 (d) nylon-6, 6
4 step solution
Problem 100
Reserine is (a) harmone (b) antibiotic (c) vitamin (d) tranquilizer
3 step solution
Problem 101
Which one of the following is a chromophore group? (a) \(-\mathrm{SO}_{3} \mathrm{H}\) (b) \(-\mathrm{OH}\) (c) \(-\mathrm{N}=\mathrm{N}^{-}\) (d) \(-\mathrm{NH}_{2}\)
7 step solution
Problem 102
The specific rotation of a freshly prepared solution of \(\alpha\) -D-glucose changes from a value of \(x^{\circ}\) to a constant value of \(y^{\circ}\). The value of \(x\) and \(y\) are respectively (a) \(112^{\circ}\) and \(52.5^{\circ}\) (b) \(19^{\circ}\) and \(52.5^{\circ}\) (c) \(52.5^{\circ}\) and \(19^{\circ}\) (d) \(52.5^{\circ}\) and \(112^{\circ}\)
4 step solution
Problem 103
The basic dye among the following is (a) congo red (b) antiline yellow (c) alizarin (d) indigo
5 step solution
Problem 104
Which of the following is an chain growth polymer? (a) Glyptal (b) Pholypropylene (c) Nylon-6 (d) Nylon-6, 6
3 step solution
Problem 105
Starch is a polymer of (a) ribose (b) glucose (c) lactose (d) fructose
6 step solution
Problem 106
The presence of carbohydrate in a sample can be detected by (a) Benedict's test (b) Tollen's test (c) Biuret test (d) Molish test
6 step solution
Problem 107
Which of the following is an example of condenasation polymer? (a) Nylon-6,6 (b) Bakelite (c) Buna-S rubber (d) All of these
5 step solution
Problem 108
Molisch test is used for the detection of (a) alkaloid (b) carbohydrates (c) alkyl halide (d) fats
3 step solution
Problem 109
In making lemon pickle (a) citric acid acts as a preservative (b) lemon oil acts as a preservative (c) salt plays the same role as sugar in jam (d) chillies are used to kill all germs and bacteria
4 step solution
Problem 110
Neoprene is a polymer of (a) butadiene (b) isoprene (c) styrene (d) chloroprene
3 step solution
Problem 111
Which of the following is an antibiotic? (a) Paracetamol (b) Aspirin (c) Terramycin (d) Chloroquine
6 step solution
Problem 112
Hydrazine as a drug is used in the treatment of (a) typhoid (b) malaria (c) cholera (d) tuberculosis
4 step solution
Problem 113
Arsenic drugs are mainly used in the treatement of (a) jaundice (b) syphilis (c) typhoid (d) cholera
4 step solution
Problem 114
Sorbitol can be obtained by the reduction of (a) fructose (b) glucose (c) sarbose (d) all of these
4 step solution
Problem 115
Bakelite is obtained from phenol by reacting with (a) chlorobenzene (b) acetaldehyde (c) formaldehyde (d) acetal
4 step solution
Problem 116
Which of the following is an alkaloid? (a) Cocaine (b) Atropine (c) Nicotine (d) All of these
6 step solution
Problem 117
A raw material used in making nylon is (a) isoprene (b) butadiene (c) adipic acid (d) ethylene
3 step solution
Problem 118
Polypropylene is not used in (a) clothes (b) parachute ropes (c) ropes (d) heat-resistant plastics
4 step solution
Problem 119
The drug which is effective in curing malaria is (a) analgin (b) aspirin (c) salol (d) quinine
3 step solution
Problem 120
A substance which can act both as an antiseptic and disinfectant is (a) phenol (b) aspirin (c) analgin (d) sodium pentothal
4 step solution
Problem 121
Dacron is an example of (a) polypropylene (b) polyamide (c) polyurethane (d) polyester
4 step solution
Problem 122
Which of the following is used as an anaesthetic? (a) \(\mathrm{CO}_{2}\) (b) \(\mathrm{N}_{2} \mathrm{O}\) (c) \(\mathrm{CH}_{4}\) (d) \(\mathrm{N}_{2}\)
3 step solution
Problem 123
Dettol consists of (a) cresol + ethanol (b) chloroxylenol + terpeneol (c) xylenol + terpeneol (d) none of the above
3 step solution
Problem 124
The pupils of eyes are dilated with a very dilute solution of an alkaloid which is (a) atropine (b) adrenaline (c) equanil (d) ephedrine
5 step solution
Problem 125
Orlon is a unit of (a) vinylcyanide (b) acrolein (c) glycol (d) isoprene
3 step solution
Problem 126
Penicillin was first discovered by (a) A. Noble (b) L. Pasteur (c) G. Thompson (d) A. Fleming
4 step solution
Problem 127
The substances which relieve anxiety, reduce mental tension and induce sleep are called (a) tranquillizers (b) antipyretics (c) analgesics (d) anaesthetics
3 step solution
Problem 128
To which class of dyes does phenolphthalein belong? (a) Phthalein dyes (b) Nitro dyes (c) Triphenylmethane dyes (d) Azo dyes
6 step solution
Problem 129
The poisonous gas evolved in Bhopal tragedy was (a) \(\mathrm{CH}_{3} \mathrm{CN}\) (b) \(\mathrm{CH}_{3} \mathrm{NCO}\) (c) \(\mathrm{COCl}_{2}\) (d) CO
4 step solution