Carboxylic Acids & Derivatives PYQs Set 4 (PDF)

Set 4 of 6 · Questions 91-120 of 177

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Mere Teacher · Previous Year Questions NEET Chemistry · Carboxylic Acids & Derivatives · Set 4 (Q91-120)
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91. $At higher temperature, iodoform reaction is given by dilute solution of :$ (1) $CH3CO2CH3$ (2) $CH3CO2C2H5$ (3) $C6H5CO2CH3$ (4) $CH3CO2C6H5$ 92. $Assertion (A) : Ammonia and its derivatives of the form H_{2} N - Z undergo condensation reaction with carbonyl compounds (aldehydes and ketones).Reason (R) : This reaction is an example of irreversible reaction.The correct option among the following is$ (1) $(A) is true, (R) is true and (R) is the correct explanation for (A)$ (2) $(A) is true, (R) is true but (R) is not the correct explanation for (A)$ (3) $(A) is true but (R) is false$ (4) $(A) is false but (R) is true$ 93. $Compound ' A' undergoes formation of cyanohydrins, which on hydrolysis gives lactic acid (CH_{3} CHOHCOOH) . Therefore, compound ' A' is$ (1) $formaldehyde$ (2) $acetaldehyde$ (3) $acetone$ (4) $benzaldehyde$ 94. $Identify the correct decreasing order of acidic strength.$ (1) $III > II > I$ (2) $I > II > III$ (3) $II > III > I$ (4) $I > III > II$ 95. $Which one of the following is reduced with Zn, Hg and HCl acid to give the corresponding hydrocarbon?$ (1) $Ethyl acetate$ (2) $Butan-2-one$ (3) $Acetamide$ (4) $Acetic acid$ 96. $The products formed in the following reaction, A and B are O$ (1) (2) (3) (4) 97. $What is the number of - COOH groups present in phthalic acid?$ (1) $3$ (2) $4$ (3) $1$ (4) $2$ 98. $Trichloroacetaldehyde, C C l_{3} C H O reacts with chlorobenzene in presence of sulphuric acid and produces$ (1) (2) (3) (4) 99. $The most suitable reagent for the given conversion is:$ (1) $H_{2} Pd$ (2) $B_{2} H_{6}$ (3) $NaB H_{4}$ (4) $LiAlH$ 100. $The major product of the following reaction is : H_{2} S O_{4} (cat .) CHC l_{3}$ (1) (2) (3) (4) 101. $An organic compound X on treatment with pyridinium chloro chromate in dichloromethane gives compound Y. Compound Y reacts with I2 and alkali to form triiodomethane. The compound 'X' is$ (1) $C2H5OH$ (2) $CH3CHO$ (3) $CH3COCH3$ (4) $CH3COOH$ 102. $Consider the acidity of the carboxylic acids : (A) PhCOOH (B) o-NO2C6H4COOH (C) p-NO2C6H4COOH (D) m-NO2C6H4COOH$ (1) $A > B > C > D$ (2) $B > C > D > A$ (3) $B > D > A > C$ (4) $B > D > C > A$ 103. $This reduction reaction is known as:$ (1) $Rosenmund reduction$ (2) $Wolff-Kishner reduction$ (3) $Stephen reduction$ (4) $Etard reduction$ 104. $Which one of the following reactions will yield propionic acid?$ (1) $C H_{3} C H_{2} C O C H_{3} + O I^{-} / H_{3} O^{+}$ (2) $C H_{3} C H_{2} C H_{3} + K M n O_{4} (Heat), O H^{-} / H_{3} O^{+}$ (3) $C H_{3} C H_{2} C C l_{3} + O H^{-} / H_{3} O^{+}$ (4) $C H_{3} C H_{2} C H_{2} Br +Mg, C O_{2} dry ether/ H_{3} O^{+}$ 105. $Write IUPAC name of following compound.$ (1) $2-Amino-4-hydroxybenzoic acid$ (2) $6-Amino-4-hydroxybenzoic acid$ (3) $3-Amino-4-carboxyphenol$ (4) $2-Carboxy-5-hydroxyaniline.$ 106. $The reagent used for the separation of acetaldehyde from acetophenone is :$ (1) $NaHSO3$ (2) $C6H5NHNH2$ (3) $NH2OH$ (4) $NaOH-I2$ 107. $Which one of the following on treatment with 50% aq. NaOH yields the corresponding alcohol and acid :$ (1) $C6H5CHO$ (2) $CH3CH2CH2CHO$ (3) $CH3COCH3$ (4) $CH3CHO$ 108. $Carbonyl compounds undergo nucleophilic addition because of$ (1) $electronegativity difference of carbon and oxygen atoms$ (2) $electromeric effect$ (3) $more stable anion with negative charge on oxygen atom and less stable carbonium ion.$ (4) $All$ 109. $When vapour of a secondary alcohol is passed over heated copper at 573 K, the product formed is$ (1) $a carboxylic acid$ (2) $an aldehyde$ (3) $a ketone$ (4) $an alkene$ 110. $The product formed in aldol reaction is :$ (1) $a β-hydroxy aldehyde or ketone$ (2) $an α-hydroxy aldehyde or ketone$ (3) $an α, β-unsaturated ester$ (4) $a β-hydroxy acid$ 111. $Which of the following carboxylic acids is a tricarboxylic acid?$ (1) $Oxalic acid$ (2) $Citric acid$ (3) $Succinic acid$ (4) $Adipic acid$ 112. $Match the compounds given in List I with their characteristic reactions given in List II. Select the correct option. List I (Compounds) (A) CH3(CH2)3NH2 (B) CH3C \equiv CH (C) CH3CH2COOCH3 (D) CH3CH (OH)CH3 List II (Reactions) (I) Alkaline hydrolysis (II) With KOH and CHCl3 produces bad smell (III) Gives white ppt. with ammonical AgNO3 (IV) With Lucas reagent cloudiness appears after 5 minutes$ (1) $A-(II), B - (I), C - (IV), D- (III)$ (2) $A - (III), B - (II), C - (I), D - (IV)$ (3) $A - (II), B - (III), C - (I), D - (IV)$ (4) $A - (IV), B - (II), C - (III), D - (I)$ 113. $Identify the reagent used in the following reaction. Benzoic acid \to Reagent Δ Benzoyl chloride + Phosphorous$ (1) $PCl_{3}$ (2) $HCl$ (3) $PCl_{5}$ (4) $SOCl_{2}$ 114. $Acetophenone when reacted with a base C2H5ONa, yield a stable compound which has the structure :$ (1) (2) (3) (4) 115. $Which of the following reagent on reaction with conc. NaOH followed by acidification gives following lactone as the :$ (1) (2) (3) (4) 116. $In a set of reactions acetic acid yielded a product D CH_{3} COOH SOCl_{2}, A Benzyne anhy.AlCl_{3} B HCN, C HOH, D The structure of D would be$ (1) (2) (3) (4) 117. $Sodium ethoxide has reacted with ethanoyl chloride. The compound that is produced in the above reaction is :$ (1) $Diethyl ether$ (2) $2-Butanone$ (3) $Ethyl chloride$ (4) $Ethyl ethanoate$ 118. $Compound (a), C_{8} H_{9} Br, gives a white precipitate when warmed with alcoholic A g N O_{3} . Oxidation of (a) gives an acid (b), C_{8} H_{6} O_{4} . (b) easily forms anhydride on heating. Identify the compound$ (1) (2) (3) (4) 119. $The major product of the following reaction is : (1) CrO_{3} (2) SOCl_{2} / ∆ (3) ∆$ (1) (2) (3) (4) 120. $Consider the following reaction : The product 'A' is :$ (1) $C6H5CHO$ (2) $C6H5OH$ (3) $C6H5COCH3$ (4) $C6H5Cl$