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Jee chemistry 224 jprcomp251dalleniit jee

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JEE-Chemistry224JPR\COMP.251\D\Allen(IIT-JEE Wing)\2020–21\Enthusiast\Chm\Unit - 07\Aldehyde & Ketone37.OCOCH3OCOCH3PQAcidicHydrolysisProduct formed by P & Q can be differentietod by :(A) 2, 4-DNP(B) Lucas reagent (ZnCl2+ conc. HCl)(C) NaHSO3(D) Fehlings solution38.Which of the reagent is used to convert 2–Butanone into propanoic acid -(A) NaOH, I2/H(B) Tollen's reagent(C) Fehling solution(D) NaOH, NaI/H39.+ X3CH COONaoWhat is X?(A) CH3COOH(B) BrCH2, COOH(C) (CH3CO)2O(D) CHO–COOH40.Write the product of following reaction :o±22NHNH(A)(B)(C)(D)41.Consider the following sequence of reactions :+ H2NOHoHeatAHeatSOH42oB.The products (A) and (B) are, respectively :(A)and(B)and(C)and(D)and
Aldehyde & Keytone225JPR\COMP.251\D\Allen(IIT-JEE Wing)\2020–21\Enthusiast\Chm\Unit - 07\Aldehyde & Ketone42.3233CH|CCHOCCHCH|||CHO'oO2H,KOH? ;Product (C7H10O)is :(A)(B)(C)(D)43.X ;(X) Identify :(A)(B)(C)(D)44.In the given reactionProduct is(A)(B)(C)(D)45.What will be the product of the following reactionoHRCO3?(A)(B) PhO||C—CH(C) PhCH(Me)OCOOMe(D) None of these46.In the reaction,(CH3)3CCHO + HCHOheatNaOHoA + B.the products (A) and (B) are respectively :(A) (CH3)3CCH2OH and HCOONa+.(B) (CH3)3CCOONa and CH3OH.(C) (CH3)3CCH2OH and CH3OH.(D) (CH3)3COONa and HCOONa+.47.On vigorous oxidation by permangnate solution (CH3)2C = CHCH2CHO gives(A) (CH3)2CO and OHCCH2CHO(B)OHOH||CHOCHCHC)CH(223±(C) (CH3)2CO and OHCCH2COOH(D) (CH3)2CO and CH2(COOH)2
JEE-Chemistry226JPR\COMP.251\D\Allen(IIT-JEE Wing)\2020–21\Enthusiast\Chm\Unit - 07\Aldehyde & Ketone48.Maximum dehydraton takes place that of(A)||OOH(B)||OOH(C)||OOH(D)CH3OH49.Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon?(A) Ethyl acetate(B) Butan-2-one(C) Acetamide(D) Acetic acid50.Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the correspondingalcohol and acid ?(A) Phenol(B) Benzoic acid(C) Butanal(D) Benzaldehyde51.The best reagent to convert pent-3-en-2-ol into pent-3-ene-2-one is(A) Pyridinium chloro-chromate(B) Chromic anhydride in glacial acetic acid(C) Acidic dichromate(D) Acidic permanganate52.The reactionR – C+NuXNuOO-R – C+X-is fastest when X is :(A) OCOR(B) OC2H5(C) NH2(D) Cl53.Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compoundif water during the reaction is continuously removed. The compound formed is generally known as(A) an amine(B) an imine(C) an enamine(D) a Schiff's base54.The decreasing order of the ratio of HCN addition to compounds A to D is(a) HCHO(b) CH3COCH3(c) PhCOCH3(d) PhCOPh(A) d > b > c > a(B) d > c > b > a(C) c > d > b > a(D) a > b > c > d55.In the following sequence of reactions,CH3CH2OHo,²2PAMgEtheroBHCHOoC2H OoD. The compound ‘D’ is(A) n-propyl alcohol(B) propanal(C) butanal(D) n-butyl alcohol56.C HCC H+ next hom ologu e33Om ixtureN H O H2Following statements is/are correct about mixture :(A) mixture is 3-types of oximes(B) mixture is 2-types of oximes(C) all are optically active(D) one is optically active57.

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Term
Spring
Professor
Andersen
Tags
Carboxylic acid, Aldehyde

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