SANITARY CHEMISTRY
SANITARY CHEMISTRY MCQs
1 The emission of an α-particle and two β-particles in succession produces an of the starting atom.
(A) Isotope (B) Isobar
(C) Isotone (D) Isomer
Ans: A
2 Among CO, NO, HCl and C02, that which will not yield a microwave spectrum is
(A) CO (B) NO
(C) HCl (D) C02
Ans: D
3 The number of normal modes of Vibration ofC6H6 molecule is
(A) 30 (B) 36
(C) 3 1 (D) 35
Ans: A
4 The π donor ligand in Ziese’s salt is
(A) Chlorine (B) Ethylene
(C) Acetylene (D) Carbonyl
Ans: A
5 The number of signals exhibited by the protons of TMS in its NMR spectrum is
(A) 2 (B) 1 (C) 3 (D) 4
Ans: B
6 Radioactive disintegration follows order kinetics.
(A) First order (B) Second order (C) Zero order (D) Third order
Ans: A
7 The emission of radiant energy after a time lag after its absorption by a substance is called
(A) Fluorescence (B) Phosphorescence (C) Vibrational relaxation (D) Inter system crossing
Ans: B
8 The ionic character of LiCl, NaCl, KCl, RbCl and CsCl follows the order
(A) LiCl > NaCl > KCl > RbCl > CsCl
(B) LiCl < NaCl < KCl < RbCl < CsCl
(C) LiCl = NaCl < KCl =RbCl < CsCl
(D) NaCl > LiCl > KCl > RbCl > CsCl
Ans: B
9 Which among the following is the optical property of colloid ?
(A) Brownian movement (B) Electrophoresis (C) Tyndal Effect (D) Electro osmosis
Ans: C
10 How many isoprene units are present in a monoterpenoids ?
(A) 3 (B) 4 (C) 2 (D) 1
Ans: C
11 Which indicator is used in Iodometric titration ?
(A) Eriochrome Black T (B) Starch solution (C) N-Phenyl anthranilic acid (D) Methyl Orange
Ans: B
12. The ligand denticity of EDTA is
(A) 6 (B) 5 (C) 4 (D) 3
Ans: A
13. The number of particles per unit cell of BCC is
(A) 4 (B) 2 (C) 1 (D) 6
Ans: B
14. The total number of crystal systems present is
(A) 8 (B) 32
(C) 7 (D) 31
Ans: C
15. The principle of liquid-gas chromatography is
(A) Adsorption (B) Absorption
(C) Partition (D) None of them
Ans: C
16. Which metal ion is present in Vitamin B-12 ?
(A) Cobalt (B) Nickel
(C) Iron (D) Copper
Ans: A
17. How many oxygen molecules are carried by a single Hemoglobin molecule ?
(A) 4 (B) 3 (C) 2 (D) 1
Ans: A
18. How many significant figures are there in the quantity 0.0063g ?
(A) 3 (B) 4 (C) 2 (D) 1
Ans: C
19. How many peaks are observed in the IR spectrum ofCO2 molecule ?
(A) 3 (B) 4 (C) 2 (D) 1
Ans: C
20. Asbestos is an example of silicate.
(A) Cyclic (B) Chain
(C) Sheet (D) Three dimensional
Ans: B
21. Rutile is an ore of
(A) Titanium (B) Iron
(C) Aluminium (D) Zinc
Ans: A
22. The highest oxidation state shown by the transition element is
(A) +7 (B) +8 (C) +6 (D) +5
Ans: B
23. The intense Violet colour ofKMnO4 is due to transition.
(A) Charge transfer (B) d-d transition
(C) f-f transition (D) Lanthanide contraction
Ans: A
24. The co-ordination number of iron in haemoglobin
(A) 4 (B) 5 (C) 6 (D) 7
Ans: B
25 What designation is given to a sublevel having n=4, l=1 ?
(A) 4p (B) 4s
(C) 4d (D) 4f
Ans: A
26 Be shows a diagonal relationship with
(A) Al
(B) Mg
(C) Si
(D) Na
Ans: A
27 But-l-ene can be converted to butane by reaction with
(A) Pd/H2 (C) Sn—HCl (B) (D) Zn/HCl Zn—Hg
Ans: A
28 Which of the following compounds show geometrical isomerism ?
(A) Cyclopropane
(B) Cyclobutane
(C) 1,2-dimethylcyclopropane
(D) None of these
Ans: C
29 Which of the following compounds is aromatic ?
A. Cyclobutadiene
B. Cyclooctatetraene
C. Cyclopropene
D. Cyclopentadienyl anion
Ans: D
30 The monomer of natural rubber is
(A) 2-methyl-1,3-butadiene
(B) 1,3-butadiene
(C) 1,3-pentadiene
(D) 2-methy1-1,3-pentadiene
Ans: A
31 Which alkaloid is present in Hemlock seed ?
(A) Coniine
(B) Quinine
(C) Piperine
(D) Morphine
Ans: A
32 Sea water will boil at a temperature
(A) Higher than pure water
(B) Lower than pure water
(C) Same as that of pure water
(D) Cannot be predicted
Ans: A
33 For a spontaneous process the free energy change should be
(A) Positive (B) Negative (C) Either positive or negative (D) Zero
Ans: B
34 A system which can exchange neither energy nor matter with surroundings is called
(A) Open system (B) Closed system (C) Isolated system (D) Independent system
Ans: C
35 Vibrational spectra will be obtained by the absorption of:
(A) Microwave radiation (B) IR radiation (C) Ultraviolet radiation (D) Visible radiation
Ans: B
36 Which one of the following is a Zn containing enzyme ?
(A) Cytochrome P-450 (B) Tyrosinase (C) Alcohol dehydrogenase (D) Cytochrome oxidase
Ans: C
37 The alkaloid used as an antimalarial drug :
(A) Atropine (B) Cocaine (C) Quinine (D) Coniine
Ans: C
38 The heat of neutralisation when a strong acid is neutralised by a strong base :
(A) —57 kJ/mole (B) 57 Cals/mole (C) —57 J/mole (D) —57 k. Cals/mole
Ans: A
39 Which defect causes a decrease in density ?
(A) Schottky (B) Frenkel (C) Metal excess (D) F- centre
Ans: A
40. The radius ratio of octahedral void is
(A) 0.414 (B) 0.225
(C) 0.0414 (D) 0.0225
Ans: A
41. The pH of a 0.001 M HCl solution is : (A) 2 (B) 3 (C) 4 (D) 1
Ans: B
42 The monomer of Orlon :
(A) Formaldehyde and phenol
(B) Ethylene glycol
(C) Vinyl cyanide
(D) Adipic acid and hexamethylene diamine
Ans: C
43 Which of the following is a Nitro dye ?
(A) Methyl orange (B) Aniline yellow
(C) Martius yellow (D) Methyl blue
Ans: C
44 Aspirin is
(A) Acetyl salicylic acid (B) Ethoxy benzoic acid
(C) Methoxy benzoic acid (D) Acetyl oxalic acid
Ans: A
45 Which acid is used for cleaning glass wares in the laboratory ?
(A) Sulphuric acid (B) Hydrochloric acid (C) Nitric acid (D) Chromic acid
Ans: D
46 Cellulose is a linear polymer of :
(A) a-D-glucose (B) B-D-glucose
(C) D-fructose (D) Sucrose
Ans: B
47 Rickets is caused by the deficiency of :
(A) Vitamin—A (B) Vitamin—B
(C) Vitamin—D (D) Vitamin—K
Ans: C
48 Barbituric acid and its derivatives are well known
(A) Antiseptics (B) Antipyretics
(C) Tranquilizers (D) Analgesics
Ans: C
49 The isomers that are interconverted through rotation around a single bond are called :
(A) Epimers (B) Anomers
(C) Enantiomers (D) Conformations
Ans: D
50 Maleic acid and fumaric acid are the forms of:
(A) Chain isomers (B) Optical isomers
(C) Geometrical isomers (D) Epimers
Ans: C
(A) Isotope (B) Isobar
(C) Isotone (D) Isomer
Ans: A
2 Among CO, NO, HCl and C02, that which will not yield a microwave spectrum is
(A) CO (B) NO
(C) HCl (D) C02
Ans: D
3 The number of normal modes of Vibration ofC6H6 molecule is
(A) 30 (B) 36
(C) 3 1 (D) 35
Ans: A
4 The π donor ligand in Ziese’s salt is
(A) Chlorine (B) Ethylene
(C) Acetylene (D) Carbonyl
Ans: A
5 The number of signals exhibited by the protons of TMS in its NMR spectrum is
(A) 2 (B) 1 (C) 3 (D) 4
Ans: B
6 Radioactive disintegration follows order kinetics.
(A) First order (B) Second order (C) Zero order (D) Third order
Ans: A
7 The emission of radiant energy after a time lag after its absorption by a substance is called
(A) Fluorescence (B) Phosphorescence (C) Vibrational relaxation (D) Inter system crossing
Ans: B
8 The ionic character of LiCl, NaCl, KCl, RbCl and CsCl follows the order
(A) LiCl > NaCl > KCl > RbCl > CsCl
(B) LiCl < NaCl < KCl < RbCl < CsCl
(C) LiCl = NaCl < KCl =RbCl < CsCl
(D) NaCl > LiCl > KCl > RbCl > CsCl
Ans: B
9 Which among the following is the optical property of colloid ?
(A) Brownian movement (B) Electrophoresis (C) Tyndal Effect (D) Electro osmosis
Ans: C
10 How many isoprene units are present in a monoterpenoids ?
(A) 3 (B) 4 (C) 2 (D) 1
Ans: C
11 Which indicator is used in Iodometric titration ?
(A) Eriochrome Black T (B) Starch solution (C) N-Phenyl anthranilic acid (D) Methyl Orange
Ans: B
12. The ligand denticity of EDTA is
(A) 6 (B) 5 (C) 4 (D) 3
Ans: A
13. The number of particles per unit cell of BCC is
(A) 4 (B) 2 (C) 1 (D) 6
Ans: B
14. The total number of crystal systems present is
(A) 8 (B) 32
(C) 7 (D) 31
Ans: C
15. The principle of liquid-gas chromatography is
(A) Adsorption (B) Absorption
(C) Partition (D) None of them
Ans: C
16. Which metal ion is present in Vitamin B-12 ?
(A) Cobalt (B) Nickel
(C) Iron (D) Copper
Ans: A
17. How many oxygen molecules are carried by a single Hemoglobin molecule ?
(A) 4 (B) 3 (C) 2 (D) 1
Ans: A
18. How many significant figures are there in the quantity 0.0063g ?
(A) 3 (B) 4 (C) 2 (D) 1
Ans: C
19. How many peaks are observed in the IR spectrum ofCO2 molecule ?
(A) 3 (B) 4 (C) 2 (D) 1
Ans: C
20. Asbestos is an example of silicate.
(A) Cyclic (B) Chain
(C) Sheet (D) Three dimensional
Ans: B
21. Rutile is an ore of
(A) Titanium (B) Iron
(C) Aluminium (D) Zinc
Ans: A
22. The highest oxidation state shown by the transition element is
(A) +7 (B) +8 (C) +6 (D) +5
Ans: B
23. The intense Violet colour ofKMnO4 is due to transition.
(A) Charge transfer (B) d-d transition
(C) f-f transition (D) Lanthanide contraction
Ans: A
24. The co-ordination number of iron in haemoglobin
(A) 4 (B) 5 (C) 6 (D) 7
Ans: B
25 What designation is given to a sublevel having n=4, l=1 ?
(A) 4p (B) 4s
(C) 4d (D) 4f
Ans: A
26 Be shows a diagonal relationship with
(A) Al
(B) Mg
(C) Si
(D) Na
Ans: A
27 But-l-ene can be converted to butane by reaction with
(A) Pd/H2 (C) Sn—HCl (B) (D) Zn/HCl Zn—Hg
Ans: A
28 Which of the following compounds show geometrical isomerism ?
(A) Cyclopropane
(B) Cyclobutane
(C) 1,2-dimethylcyclopropane
(D) None of these
Ans: C
29 Which of the following compounds is aromatic ?
A. Cyclobutadiene
B. Cyclooctatetraene
C. Cyclopropene
D. Cyclopentadienyl anion
Ans: D
30 The monomer of natural rubber is
(A) 2-methyl-1,3-butadiene
(B) 1,3-butadiene
(C) 1,3-pentadiene
(D) 2-methy1-1,3-pentadiene
Ans: A
31 Which alkaloid is present in Hemlock seed ?
(A) Coniine
(B) Quinine
(C) Piperine
(D) Morphine
Ans: A
32 Sea water will boil at a temperature
(A) Higher than pure water
(B) Lower than pure water
(C) Same as that of pure water
(D) Cannot be predicted
Ans: A
33 For a spontaneous process the free energy change should be
(A) Positive (B) Negative (C) Either positive or negative (D) Zero
Ans: B
34 A system which can exchange neither energy nor matter with surroundings is called
(A) Open system (B) Closed system (C) Isolated system (D) Independent system
Ans: C
35 Vibrational spectra will be obtained by the absorption of:
(A) Microwave radiation (B) IR radiation (C) Ultraviolet radiation (D) Visible radiation
Ans: B
36 Which one of the following is a Zn containing enzyme ?
(A) Cytochrome P-450 (B) Tyrosinase (C) Alcohol dehydrogenase (D) Cytochrome oxidase
Ans: C
37 The alkaloid used as an antimalarial drug :
(A) Atropine (B) Cocaine (C) Quinine (D) Coniine
Ans: C
38 The heat of neutralisation when a strong acid is neutralised by a strong base :
(A) —57 kJ/mole (B) 57 Cals/mole (C) —57 J/mole (D) —57 k. Cals/mole
Ans: A
39 Which defect causes a decrease in density ?
(A) Schottky (B) Frenkel (C) Metal excess (D) F- centre
Ans: A
40. The radius ratio of octahedral void is
(A) 0.414 (B) 0.225
(C) 0.0414 (D) 0.0225
Ans: A
41. The pH of a 0.001 M HCl solution is : (A) 2 (B) 3 (C) 4 (D) 1
Ans: B
42 The monomer of Orlon :
(A) Formaldehyde and phenol
(B) Ethylene glycol
(C) Vinyl cyanide
(D) Adipic acid and hexamethylene diamine
Ans: C
43 Which of the following is a Nitro dye ?
(A) Methyl orange (B) Aniline yellow
(C) Martius yellow (D) Methyl blue
Ans: C
44 Aspirin is
(A) Acetyl salicylic acid (B) Ethoxy benzoic acid
(C) Methoxy benzoic acid (D) Acetyl oxalic acid
Ans: A
45 Which acid is used for cleaning glass wares in the laboratory ?
(A) Sulphuric acid (B) Hydrochloric acid (C) Nitric acid (D) Chromic acid
Ans: D
46 Cellulose is a linear polymer of :
(A) a-D-glucose (B) B-D-glucose
(C) D-fructose (D) Sucrose
Ans: B
47 Rickets is caused by the deficiency of :
(A) Vitamin—A (B) Vitamin—B
(C) Vitamin—D (D) Vitamin—K
Ans: C
48 Barbituric acid and its derivatives are well known
(A) Antiseptics (B) Antipyretics
(C) Tranquilizers (D) Analgesics
Ans: C
49 The isomers that are interconverted through rotation around a single bond are called :
(A) Epimers (B) Anomers
(C) Enantiomers (D) Conformations
Ans: D
50 Maleic acid and fumaric acid are the forms of:
(A) Chain isomers (B) Optical isomers
(C) Geometrical isomers (D) Epimers
Ans: C
51 BF3 is an acid according to
(A) Arrhenius concept (B) Bronsted—Lowry concept
(C) Ostwald (D) Lewis concept
Ans: D
52. How many coulombs of electricity are required to produce 20.0g of calcium from molten CaCl2 ?
(A) 57900 C (B) 96500C
(C) 10800C (D) 48250C
Ans: B
53. At equilibrium state :
(A) AG is positive (B) AH is negative
(C) AG is zero (D) AH is positive
Ans: C
54 The heat absorbed by the system at constant pressure is
(A) ∆E (B) ∆H (C) ∆G (D) ∆S
Ans: B
55 How many unpaired electrons are present in Cu+ ion ?
(A) 2 (B) 1 (C) 0 (D) 3
Ans: C
56 According to Hund’s rule, the number of unpaired electrons in nitrogen atom will be
(A) 2 (B) 1 (C) 5 (D) 3
Ans: D
57 Three letters ABC can be arranged in number of ways.
(A) 6
(B) 4
(C) 8
(D) 12
Ans: A
58 The inter nuclear distance remains constant during electronic excitation. This assumption 1S :
(A) Morse (C) Born Oppenheimer
(B) Huckel rule (D) Frank Condon
Ans: D
59 For phenol-water system, the critical solution temperature is
(A) 65.1°C
(B) 68.1°C
(C) 76.2°C
(D) 39.5°C
Ans: B
60 α-helical structure refers to the ______ structure of protein.
(A) Primary
(B) Secondary
(C) Tertiary
(D) Quaternary
Ans: B
61. Bhopal Tragedy is due to :
(A) Ethyl isocyanate
(C) Propyl isocyanate
(B) Phenyl isocyanate
(D) Methyl isocyanate
Ans: D
(A) Arrhenius concept (B) Bronsted—Lowry concept
(C) Ostwald (D) Lewis concept
Ans: D
52. How many coulombs of electricity are required to produce 20.0g of calcium from molten CaCl2 ?
(A) 57900 C (B) 96500C
(C) 10800C (D) 48250C
Ans: B
53. At equilibrium state :
(A) AG is positive (B) AH is negative
(C) AG is zero (D) AH is positive
Ans: C
54 The heat absorbed by the system at constant pressure is
(A) ∆E (B) ∆H (C) ∆G (D) ∆S
Ans: B
55 How many unpaired electrons are present in Cu+ ion ?
(A) 2 (B) 1 (C) 0 (D) 3
Ans: C
56 According to Hund’s rule, the number of unpaired electrons in nitrogen atom will be
(A) 2 (B) 1 (C) 5 (D) 3
Ans: D
57 Three letters ABC can be arranged in number of ways.
(A) 6
(B) 4
(C) 8
(D) 12
Ans: A
58 The inter nuclear distance remains constant during electronic excitation. This assumption 1S :
(A) Morse (C) Born Oppenheimer
(B) Huckel rule (D) Frank Condon
Ans: D
59 For phenol-water system, the critical solution temperature is
(A) 65.1°C
(B) 68.1°C
(C) 76.2°C
(D) 39.5°C
Ans: B
60 α-helical structure refers to the ______ structure of protein.
(A) Primary
(B) Secondary
(C) Tertiary
(D) Quaternary
Ans: B
61. Bhopal Tragedy is due to :
(A) Ethyl isocyanate
(C) Propyl isocyanate
(B) Phenyl isocyanate
(D) Methyl isocyanate
Ans: D