Chemistry in Everyday Life PYQs Set 1 (PDF)

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Mere Teacher · Previous Year Questions JEE Main Chemistry · Chemistry in Everyday Life · Set 1 (Q1-30)
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1. $Which of the following is structure of a separating funnel?$ (1) (2) (3) (4) 2. $Match List I with List II List I Antimicrobials (A) Narrow Spectrum Antibiotic (B) Antiseptic (C) Disinfectants (D) Broad spectrum antibiotic List II Names (I) Furacin (II) Sulphur dioxide (III) Penicillin-G (IV) Chloramphenicol$ (1) $(A)-III,(B)-L,(C)-II,(D)-IV$ (2) $(A) -1, (B) - II, (C) - IV, (D) - III$ (3) $(A) - II, (B) -1, (C) - IV, (D) - III$ (4) $(A) - III, (B) - I,(C) - IV, (D) - II$ 3. $The condition that indicates a polluted environment is$ (1) $0.03% of C O_{2} in the atmosphere$ (2) $pH of rain water to be 5.6$ (3) $eutrophication$ (4) $BOD value of 5 ppm$ 4. $Which one of the following types of drugs reduces fever ?$ (1) $Tranquilizer$ (2) $Antibiotic$ (3) $Antipyretic$ (4) $Analgesic$ 5. $Tincture of iodine is the common name for$ (1) $iodoform$ (2) $2-iodopropane$ (3) $2-3% iodine solution in alcohol-water$ (4) $iodobenzene$ 6. $The upper stratosphere consisting of the ozone layer protects us from the sun's radiation that falls in the wavelength region$ (1) $200 - 315 nm$ (2) $400 - 550 nm$ (3) $0.8 - 1.5 nm$ (4) $600 - 750 nm$ 7. $Amongst H_{2} O, H_{2} S, H_{2} Se and H_{2} Te the one with highest boiling point is :$ (1) $H_{2} O because of H-bonding.$ (2) $H_{2} Te because of higher molecular weight.$ (3) $H_{2} S because of H-bonding.$ (4) $H_{2} Se because of lower molecular weight$ 8. $Match the following: List I A. Analgesic B. Tranquilizer C. Antibiotic D. Antihistamine List II (i) Phenelzine (ii) Terfenadine (iii) Codeine (iv) Prontosil The correct answer is: A B C D$ (1) $(i) (ii) (iv) (i)$ (2) $(iii) (i) (iv). (ii)$ (3) $(ii) (iii) (i) (iv)$ (4) $(ii) (iii) (iv) (i)$ 9. $Which among the following is used in detergent$ (1) $Sodium acetate$ (2) $Sodium stearate$ (3) $Calcium stearate$ (4) $Sodium lauryl sulphate$ 10. $Which of the following statements are correct? I. Binding of inhibitor at allosteric site changes the shape of the active site. II. Shape of the receptor does not change after attachment of chemical messenger to it. III. A chemical messenger gives message to the cell by entering it. IV. Erythromycin is an example of bacteriostatic antibiotic.$ (1) $I, II$ (2) $II, III$ (3) $I, IV$ (4) $III, IV$ 11. $Which one of the following is employed as a tranquilizer?.$ (1) $Naproxen$ (2) $Tetracycline$ (3) $Chlorpheninamine$ (4) $Equanil (2009)$ 12. $Which of the following is an anionic detergent ?$ (1) $Sodium lauryl sulphate$ (2) $Cetyltrimethyl ammonium bromide$ (3) $Glyceryl oleate$ (4) $Sodium stearate$ 13. $Which one of the following types of drugs reduces fever ?$ (1) $Tranquiliser$ (2) $Antibiotic$ (3) $Antipyretic$ (4) $Analgesic$ 14. $Which one of the following will improve the lathering property of soap$ (1) $Sodium stearate$ (2) $Sodium rosinate$ (3) $Sodium carbonate$ (4) $Sodium phosphate$ 15. $A non-reducing sugar "A" hydrolyses to give two reducing mono saccharides. Sugar A is-$ (1) $Fructose$ (2) $Galactose$ (3) $Glucose$ (4) $Sucrose$ 16. $The correct match between Item-I and Item-II is: Item I (drug) Item II (test) A. Allosteric effect P. Molecule binding to the active site of enzyme B. Competitive inhibotor Q. Molecule crucial for communication in the body C. Receptor R. Molecule binding to a site other than the active site of enzyme D. Poison S. Molecule binding to the enzyme covalently$ (1) $A\toR; B\toP; C\toQ; D\toS$ (2) $A\toP; B\toR; C\toQ; D\toS$ (3) $A\toR; B\toP; C\toS; D\toQ$ (4) $A\toP; B\toR; C\toS; D\toQ$ 17. $Which of the following chemicals can be added for sweetening of food items at cooking temperature and does not provide calories?$ (1) $Sucrose$ (2) $Glucose$ (3) $Fructose$ (4) $Sucralose$ 18. $Which one among the following is an antioxidant?$ (1) (2) (3) (4) 19. $Identify the correct statement from the following$ (1) $Unbranched hydrocarbon detergents are nonbiodegradable$ (2) $Cetyltrimethyl ammonium bromide is used in hair conditioners$ (3) $Liquid dish washing detergents are anionic type$ (4) $Synthetic detergents cannot be used in hard water$ 20. $Match List I with List li List I A. Antipyretic B. Analgesic C. Tranquilizer D. Antacid List II I. Reduces pain II. Reduces stress III. Reduces fever IV. Reduces acidity (Stomach) Choose the correct answer from the options given below:$ (1) $A-III, B-I, C-II, D-IV$ (2) $A-III, B-I, C-IV, D-II$ (3) $A-I,B-IV,C-II,D-III$ (4) $A-I, B-III, C-II, D-IV$ 21. $An ether is more volatile than an alcohol having the same molecular formula. This is due to -$ (1) $Dipolar character of ethers$ (2) $Alcohols having resonance structures$ (3) $Inter-molecular hydrogen bonding in ethers$ (4) $Inter-molecular hydrogen bonding in alcohols$ 22. $Identify opiates from the following: (A) Codein (B) Tymine(C) Epinephrine (D) Morphine(E) Thiamine and (F) Heroin$ (1) $A, D, F$ (2) $C, D, E$ (3) $B, E, F$ (4) $A, B, C$ 23. $Statement-1 : p-Hydroxybenzoic acid has a lower boiling point than o-hydroxybenzoic acid. Statement-2 : o-Hydroxybenzoic acid has intramolecular hydrogen bonding.$ (1) $Statement-1 is True,Statement-2 is True; Statement-2 is a correct explanation forStatement-1.$ (2) $Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.$ (3) $Statement-1 is True, Statement-2 is False.$ (4) $Statement-1 is False, Statement-2 is True.$ 24. $Which of the following acts as antihistamine?$ (1) $Heroin$ (2) $Dimetapp$ (3) $Nardil$ (4) $Veronal$ 25. $The mechanism of action of Terfenadine (Seldane) is:$ (1) $Activates the histamine receptor$ (2) $Helps in the secretion of histamine$ (3) $Inhibits the secretion of histamine$ (4) $Inhibits the action of histamine receptor$ 26. $Bactericidal antibiotic among the following is$ (1) $ofloxacin$ (2) $erythromycin$ (3) $chloramphenicol$ (4) $tetracycline.$ 27. $During the detection of acidic radical present in a salt, a student gets a pale-yellow precipitate soluble with difficulty in NH_{4} OH solution when sodium carbonate extract was first acidified with dil. HNO_{3} and then AgNO_{3} solution was added. This indicates presence of :$ (1) $Br^{-}$ (2) $I^{-}$ (3) $Cl^{-}$ (4) $CO_{3}^{2 -}$ 28. $Which of the following statements are correct? (i) Drugs that mimic natural messenger by switching on the receptor are called agonists. (ii) Shape of the receptor does not change after attachment of chemical messenger. (iii) A cationic detergent is formed when stearic acid reacts with polyethylene glycol. (iv) Seldane is an antihistamine$ (1) $(ii), (iii)$ (2) $(i), (iii), (iv)$ (3) $(i), (iv)$ (4) $(i), (ii), (iii)$ 29. $Which of the vitamins given below is water soluble ?$ (1) $Vitamin C$ (2) $Vitamin D$ (3) $Vitamin E$ (4) $Vitamin K$ 30. $Excessive release of C O_{2} into the atmosphere results in:$ (1) $global warming$ (2) $polar vortex$ (3) $formation of smog$ (4) $depletion of ozone$