Chemistry in Everyday Life PYQs Set 4 (PDF)

Set 4 of 9 · Questions 91-120 of 245

In the print window choose “Save as PDF”. The file prints without a web address or date line.

Mere Teacher · Previous Year Questions JEE Main Chemistry · Chemistry in Everyday Life · Set 4 (Q91-120)
Scan or visit mereteacher.com for free PYQ practice, timed CBT tests, step-by-step solutions and BroBot AI. Answers and solutions are free with a sign-up.
91. $Water filled in two glasses A and B have B O D values of 10 and 20 respectively. The correct statement regarding them. is:$ (1) $B is more polluted than A$ (2) $A is suitable for drinking, whereas B is not$ (3) $Both A and B are suitable for drinking.$ (4) $A is more polluted than B$ 92. $The regions of the atmosphere, where clouds are formed and where we live, respectively, are:$ (1) $Troposphere and Stratosphere$ (2) $Stratosphere and Troposphere$ (3) $Troposphere and Troposphere$ (4) $Stratosphere and Stratosphere$ 93. $The higher concentration of which gas in air can cause stiffness of flower buds?$ (1) $NO_{2}$ (2) $CO_{2}$ (3) $SO_{2}$ (4) $CO$ 94. $Mixture of chloroxylenol and terpineol acts as$ (1) $antiseptic$ (2) $antipyretic$ (3) $antibiotic$ (4) $analgesic.(NEET2017)$ 95. $Among the following the molecule with the highest dipole moment is :$ (1) $C H_{3} CI$ (2) $C H_{3} C l_{2}$ (3) $C H C I_{3}$ (4) $C C l_{4}$ 96. $Water samples with BOD values of 4 ppm and 18 ppm, respectively, are:$ (1) $Clean and Clean$ (2) $Highly polluted and Clean$ (3) $Clean and Highly polluted$ (4) $Highly polluted and Highly polluted$ 97. $The sweetest artificial sugar among the following is :$ (1) $Aspartame$ (2) $Sucralose$ (3) $Alitame$ (4) $Sucrose$ 98. $Identify the binary mixture(s) that can be separated into individual compounds, by differential extraction, as shown in the given scheme.$ (1) $C_{6} H_{5} OH and C_{6} H_{5} COOH$ (2) $C_{6} H_{5} COOH and C_{6} H_{5} C H_{2} OH$ (3) $C_{6} H_{5} C H_{2} OH and C_{6} H_{5} OH$ (4) $C_{6} H_{5} C H_{2} OH and C_{6} H_{5} C H_{2} COOH$ 99. $Match List-I with List-II :Choose the most appropriate match:$ (1) $(a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)$ (2) $(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)$ (3) $(a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)$ (4) $(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)$ 100. $Match List I with List II Choose the correct answer from the options given below:$ (1) $A-III, B-II, C-IV, D-I$ (2) $A-III, B-IV, C-I, D-II$ (3) $A-III, B-I, C-II, D-IV$ (4) $A-III, B-I, C-IV, D-II$ 101. $Which of the following forms cationic micelles above certain concentration?.$ (1) $Sodium dodecyl sulphate$ (2) $Sodium acetate$ (3) $Urea$ (4) $Cetyltrimethylammonium bromide (2004)$ 102. $The mass percentage of nitrogen in histamine is _____________$ (1) $30.84$ (2) $45.30$ (3) $37.80 to 38.20$ (4) $76.40$ 103. $The correct statement in respect of protein haemoglobin is that it$ (1) $functions as a catalyst for biological reactions$ (2) $maintains blood sugar level$ (3) $act as an oxygen carrier in the blood$ (4) $forms antibodies and offers resistance to diseases$ 104. $The drug, which was designed to prevent the interaction of histamine with the receptors present in the stomach wall is$ (1) $prontosil$ (2) $cimetidine$ (3) $aspartame$ (4) $equanil$ 105. $Diazo coupling is useful to prepare some$ (1) $pesticides$ (2) $dyes$ (3) $proteins$ (4) $vitamins.(1994)$ 106. $Chloropicrin is obtained by the reaction of$ (1) $steam on carbon tetrachloride$ (2) $nitric acid on chlorobenzene$ (3) $chlorine on picric acid$ (4) $nitric acid on chloroform. (2004)$ 107. $The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is -$ (1) $F e_{4} [Fe(CN)_{6}]_{3}$ (2) $N a_{3} [Fe (C N)_{6}$ (3) $Fe (C N)_{3}$ (4) $N a_{4} [Fe (C N)_{5} NOS]$ 108. $Given below are two statements : Statement I : Penicillin is a bacteriostatic type antibiotic. Statement II : The general structure of Penicillin is: Choose the correct option :$ (1) $Both statement I and statement II are false$ (2) $Statement I is incorrect but statement II is true$ (3) $Both statement I and statement II are true$ (4) $Statement I is correct but statement II is false$ 109. $The number of s p^{2} hybridised carbons present in ''Aspartame'' is ______$ (1) $6$ (2) $4$ (3) $9$ (4) $5$ 110. $The correct match between Item-I and Item-II is: Item I (drug) Item II (test) A. Chloroxylenol P. Carbylamine test B. Norethindrone Q. Sodium hydrogencarbonate test C. Sulphapyridine R. Ferric chloride test D. Penicillin S. Bayer’s test$ (1) $A\toR; B\toP; C\toS; D\toQ$ (2) $A\toQ; B\toS; C\toP; D\toR$ (3) $A\toR; B\toS; C\toP; D\toQ$ (4) $A\toQ; B\toP; C\toS; D\toR$ 111. $The reaction used for preparation of soap from fat is :$ (1) $An addition reaction$ (2) $Reduction reaction$ (3) $Alkaline hydrolysis reaction$ (4) $An oxidation reaction$ 112. $The antifertility drug Novestrol can react with$ (1) $/water; \HCl;$ (2) $\HCl; Alcoholic HCN$ (3) $B r_{2} /water; ZnC l_{2} /HCl; NaOCl$ (4) $Alcoholic HCN; NaOCl; ZnC l_{2} /HCl$ 113. $Match List I with List II. List I A. Zymase B. Diastase C. Urease D. Pepsin List II I. Stomach II. Yeast III. Malt IV. Soyabean Choose the correct answer from the options given below:$ (1) $A-II,B-III,C-I,D-IV$ (2) $A-II, B-III, C-IV, D-I$ (3) $A-III, B-II, C-IV, D-I$ (4) $A-III, B-II, C-I, D-IV$ 114. $Thermal power plants can lead to:$ (1) $Eutrophication$ (2) $Ozone layer depletion$ (3) $Blue baby syndrome$ (4) $Acid rain$ 115. $Tincture of iodine is :$ (1) $aqueous solution of I2$ (2) $solution of I2 in aqueous KI$ (3) $alcoholic solution of I2$ (4) $aqueous solution of KI$ 116. $Match List I with List II List I (Anion) A. CO_{3}^{2 -} B. S^{2 -} C. SO_{3}^{2 -} D. N O_{2}^{-} List II (Gas evolved on reaction with dil H_{2} S O_{4}) I. Colourless gas which turns lead acetate paper black II. Colourless gas which turns acidified potassium dichromate solution green. III. Brown fumes which turns acidified KI solution containing starch blue. IV. Colourless gas evolved with brisk effervescence, which turns lime water milky. Choose the correct answer from the options given below:$ (1) $A-III,B-I,C-II,D-IV$ (2) $A-II, B-I, C-IV, D-III `$ (3) $A-IV, B-I, C-III, D-II$ (4) $A-IV, B-I, C-II, D-III$ 117. $Noradrenaline is a/an:$ (1) $Antacid$ (2) $Neurotransmitter$ (3) $Antidepressant$ (4) $Antihistamine$ 118. $Which will have higher dipole moment than ?$ (1) (2) (3) (4) 119. $In a borax bead test under hot condition, a metal salt (one from the given) is heated at point B of the flame, resulted in green colour salt bead. The spin-only magnetic moment value of the salt is ______BM (Nearest integer) [Given atomic number of Cu = 29, Ni = 28, Mn = 25, Fe = 26]$ 120. $Consider the following test for a group-IV cation. M^{2 +} + H_{2} S \to A (Black precipitate) + by product A + aqua regia \to B + NOCl + S + H_{2} O B + KNO_{2} + CH_{3} COOH \to C + by product The spin-only magnetic moment value of the metal complex C is______BM (Nearest integer)$