Chemistry in Everyday Life PYQs Set 2 (PDF)

Set 2 of 9 · Questions 31-60 of 245

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JEE Main Chemistry · Chemistry in Everyday Life · Set 2 (Q31-60)

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31.
He presence of soluble fluoride ion upto 1 ppm concentration in drinking water, is
1. (1) $safe for teeth$
2. (2) $harmful to skin$
3. (3) $harmful for teeth$
4. (4) $harmful to bones$
32.
Which one of the following method is neither meant for the synthesis nor for separation of amines ?
1. (1) $Hinsberg method$
2. (2) $Hofmann method$
3. (3) $Wurtz reaction$
4. (4) $Curtius reaction$
33.
Air pollution that occurs in sunlight is:
1. (1) $reducing smog$
2. (2) $acid rain$
3. (3) $oxidizing smog$
4. (4) $fog$
34.
Given below are two statements:
Statement I: Morphine is a narcotic analgesic. It helps in relieving pain without producing sleep. Statement II: Morphine and its derivatives are obtained from opium poppy. In the light of the above statements, choose the correct answer from the options given below
1. (1) $Both Statement I and Statement II are true$
2. (2) $Statement I is true but Statement II is false$
3. (3) $Both Statement I and Statement II are false$
4. (4) $Statement I is false but Statement II is true$
35.
The "saponification value" of an oil or fat is measured in term of
1. (1) $NH4OH$
2. (2) $NaOH$
3. (3) $KOH$
4. (4) $C6H5OH$
36.
The correct set of species responsible for the photochemical smog is:
1. (1) $N_{2}, NO_{2} and hydrocarbons$
2. (2) $CO_{2}, NO_{2}, SO_{2} and hydrocarbons$
3. (3) $NO, NO_{2}, O_{3} and hydrocarbons$
4. (4) $N_{2}, O_{2}, O_{3} and hydrocarbons$
37.
Which of the following compounds are not used as disinfectants?
(A) Chloroxylenol (B) Bithional
(C) Veronal (D) Prontosil
(E) Terpineol
Choose the correct answer from the options given below:
1. (1) $A,B,E$
2. (2) $A,B$
3. (3) $B, D, E$
4. (4) $C, D$
38.
The compound that is NOT a common component of photochemical smog is:
1. (1) $O_{3}$
2. (2) $H_{3} C - C (= O) - OON O_{2}$
3. (3) $CH_{2} = CHCHO$
4. (4) $CF_{2} Cl_{2}$
39.
Match List I with List II :
$List I (A) I Saccharin (B) Aspartame (C) Alitame (D) Sucralose List II (I) I High potency sweetener (II) First artificial sweetening agent (III) Stable at cooking temperature (IV) Unstable at cooking temperature$
Choose the correct answer from the options given below :
1. (1) $A-IV, B-III, C-I, D-II$
2. (2) $A-II, B-III, C-IV, D-I$
3. (3) $A-II, B-IV, C-III, D-I$
4. (4) $A-II,B-IV,C-I,D-III$
40.
$Match the following$
$List - I$ $List - II$
$A. Broad spectrum$ $I. Amoxycillin$
$B. Typhoid II. Vancomycin$ $IV. Chloramphenicol$
$C. Bactericidal III. Erythromycin$ $V. Ofloxacin$
$D. Bacteriostatic$
$The correct answer is$
1. (1) $A - II, B - I, C - V, D - III$
2. (2) $A - II, B - IV, C-V, D - III$
3. (3) $A - III, B - IV, C - II, D - I$
4. (4) $A-III, B - II, C-IV, D-V$
41.
Which of the following is an analgesic?.
1. (1) $Streptomycin$
2. (2) $Chloromycetin$
3. (3) $Novalgin$
4. (4) $Penicillin(NEET‐I2016)$
42.
The concentration of dissolved oxygen (DO) in cold water can go upto:
1. (1) $14 ppm$
2. (2) $8 ppm$
3. (3) $10 ppm$
4. (4) $16 ppm$
43.
The artificial sweetner stable at cooking temperature and does not provide calories is -
1. (1) $Saccharin$
2. (2) $Aspartame$
3. (3) $Sucralose$
4. (4) $Alitame$
44.
Which one of the following is the correct structure of sulphapyridine?
1. (1)
2. (2)
3. (3)
4. (4)
45.
Two statements in respect of drug-enzyme interaction are given below
Statement I: Action of an enzyme can be blocked only when an inhibitor blocks the active site of the enzyme.
Statement II : An inhibitor can form a strong covalent bond with the enzyme.
In the light of the above statements. Choose the correct answer from the options given below
1. (1) $Both Statement I and Statement II are true$
2. (2) $Both Statement I and Statement II are false$
3. (3) $Statement I is true but Statement II is false$
4. (4) $Statement I is false but Statement II is true$
46.
The primary pollutant that leads to photochemical smog is:
1. (1) $acrolein$
2. (2) $nitrogen oxides$
3. (3) $ozone$
4. (4) $sulphur dioxide$
47.
Match List-I with List-II
$List I Class of Chemicals 1. Antifertility drug 2. Antibiotic 3. Tranquilizers 4. Artificial sweetener List II Example (i) Meprobamate (ii) Alitame (iii) Norethindrone (iv) Salvarsan$
Choose the correct match :
1. (1) $(1)-(ii),(2)-(iii),(3)-(iv),(4)-(i)$
2. (2) $(1) - (iv),(2) - (iii),(3) - (ii),(4) - (i)$
3. (3) $(1)-(iii), (2)-(iv), (3)-(i), (d)-(ii)$
4. (4) $(1) - (ii),(2) - (iv),(3) - (i),(4) - (iii)$
48.
Which of the following artificial sweeteners has the highest sweetness value in comparison to cane sugar?
1. (1) $Aspartame$
2. (2) $Sucralose$
3. (3) $Alitame$
4. (4) $Saccharin$
49.
The maximum prescribed concentration of copper in drinking water is:
1. (1) $5 ppm$
2. (2) $0.05 ppm$
3. (3) $0.5 ppm$
4. (4) $3 ppm$
50.
The correct match between Item-I and Item-II is:
Item I (drug) Item II (test)
A. Norethindrone P. Antibiotic
B. Ofloxacin Q. Antifertility
C. Equanil R. Hypertension
S. Analgesics
1. (1) $A\toQ; B\toR; C\toS$
2. (2) $A\toQ; B\toP; C\toR$
3. (3) $A\toR; B\toP; C\toS$
4. (4) $A\toR; B\toP; C\toR$
51.
Match List-I with List-II
$List I Class of Drug 1. Antacid 2. Artificial sweetener 3. Antifertility 4. Tranquilizers List II Example (i) Novestrol (ii) Cimetidine (iii) Valium (iv) Alitame$
Choose the correct match :
1. (1) $(1) - (ii),(2) - (iv),(3) - (i),(4) - (iii)$
2. (2) $(1)-(iv),(2) - (i),(3) - (ii),(4) - (iii)$
3. (3) $(1) - (iv),(2) - (iii),(3) - (i),(4) - (ii)$
4. (4) $(1) - (ii),(2) - (iv),(3) - (iii),(4) - (i)$
52.
Among the following, the narrow spectrum antibiotic is :
1. (1) $Chloramphenicol$
2. (2) $Penicillin G$
3. (3) $Ampicillin$
4. (4) $Amoxycillin$
53.
Artificial sweetner which is stable under cold conditions only is
1. (1) $saccharine$
2. (2) $sucralose$
3. (3) $aspartame$
4. (4) $alitame. (2014)$
54.
The correct statement (s) among I to III with respect to potassium ions that are abundant within the cell fluids is/are :
I. They active many enzymes
II. They participate in the oxidation of glucose to produce ATP
III. Along with sodium ions, they are responsible for the transmission of nerve signals
1. (1) $I and II only$
2. (2) $I and III only$
3. (3) $I, II and III$
4. (4) $III only$
55.
A water sample has ppm level concentration of the following metals $Fe = 0.2; Mn = 5.0; Cu = 3.0; Zn = 5.0$ The metal that makes the water sample unsuitable for drinking is:
1. (1) $Cu$
2. (2) $Mn$
3. (3) $Fe$
4. (4) $Zn$
56.
In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :
1. (1) $increase concentration of Cl^{-} ions$
2. (2) $increase concentration of NH_{4}^{+} ions$
3. (3) $prevent interference by phosphate ions$
4. (4) $decrease concentration of^{-} OH ions$
57.
If you spill a chemical toilet cleaning liquid on your hand, your first aid would be
1. (1) $aqueous NaOH$
2. (2) $aqueous NaHCO_{3}$
3. (3) $aqueous NH_{3}$
4. (4) $vinegar$
58.
The boiling points of two miscible liquids, which do not form azeotropic mixture, are close to each other. Their separation is best carried out by :
1. (1) $vacuum distillation$
2. (2) $fractional distillation$
3. (3) $steam distillation$
4. (4) $redistillation$
59.
Receptors are proteins and crucial to body communication process. These receptors are embedded in
1. (1) $cell membrane$
2. (2) $protein$
3. (3) $endocrine gland$
4. (4) $chromosomes.$
60.
A flask contains a mixture of isohexane and 3-methylpentane. One of the liquids boils at 63ºC while the other boils at 60ºC. What is the best way to seperate the two liquids and which one will be distilled out first ?
1. (1) $simple distillation, isohexane$
2. (2) $simple distillation, 3-methylpentane$
3. (3) $fractional distillation, 3-methylpentane$
4. (4) $fractional distillation, isohexane$