ALDEHYDE, KETONES,& CARBOXYLIC ACID. a) 2-hydroxy-2-methylpropanenitrile

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1 ALDEHYDE, KETNES,& CARBXYLIC ACID 1) C H 3 CH dil.h 2 S 4 HgS 4 A HCN H 2 /Ni B The IUPAC name of B is 2-hydroxy-2-methylpropanenitrile b) 2-hydroxy-2-methylpropanoic acid 2-hydroxypropanoic acid d) 1-amino-2-methylpropanol-2 2)The compound Y in the folloeing reaction is H PCl 5 X Y CH 3 CH 2 Cl b) CH 2 MgCl CH 2 - Na + d) None of these 3) Which of the following will undergo hydration most easily? CCl 3 CCCl 3 b) CCCl 3 CF 3 CCF 3 d) C 4) In the given reaction R Cl + R 2CuLi [X] Will be C 6 H 5 CH b) CH 2 C CH 2 CH d) CH

2 5) How many hydrogens are present in benzyl methyl ketone 4 b) 3 5 d) 6 6)For benzaldehyde, which of the following is incorrect It is an aromatic aldehyde b) It is used in perfumery n oxidation it yields benzoic acid d) n reduction it yields phenol 7) The reaction C 6 H 5 CH + CH C 6 H 5 CH=CH-CH Perkin s reaction b) Claisen condensation Benzoin condensation d) Cannizzaro s reaction 8) -CH + HCN A ; Compound A on hydrolysis gives CH 2 CH b) -CH 2 -CH 2 -NH 2 -CHH-CH d) -C-CH 9) Which of the following will be most readily dehydrated in acidic conditions. H H b) H d) H 10) The compound not soluble in acetic acid is CaC 3 b)ca

3 11) In the reaction CaC 2 4 d) NHC NH 2 NH 2 -H 2 X KH glycol y+n 2 'y' is CH 2 (H)CH(H)CH 2 H b) CH= CH 2 CH 2 CH d) CH 2 12) Treatment of propionaldehyde with dilute NaH solution gives CH 2 C CH 2 CH 2 b) CH 2 CHH CH( )CH CH 2 CHH CH 2 CH 2 CH CH 2 C CH 2 CH 2 CH 13) H 40%H 2 S 4 A Isomerisation 1% HgS 4 Structure of A and type of isomerism in the above reaction are respectively. prop-1-en-2-ol, metamerism b) prop-1-en-1-ol, Tautomerism prop-2-en-2-ol, geometrical isomerism d) prop-1-en-2-ol, Tautomerism 14) The correct order of decreasing acid strength of trichloroacetic acid (A) trifluroacetic acid(b) acetic acid & tribromoacetic acid (D) is B>A>D>C b) B>D>C>A A>B>C>D d) A>C>B>D 15) In a set of reactions, CH 2 CH yielded product D H SCl 2 A Benzene B An.AlCl 3 HCN C HH D The structure of D would be

4 C H 3 H H H H b) H H H d) 16.Silver mirror test is not positive with Benzaldehyde Acetone b)fructose d)acetaldehyde 17.Nucleophilic attack on carbonyl carbon changes its hybridization form sp to sp 2 b)sp 2 to sp 3 sp 3 to sp 2 d)sp to sp 3 18.Cannizaros reaction is not given by ( ) 3 CH C 6 H 5 CH b)( ) 2 CHCH d)(ch 2 H) 3 CCH 19.Identify A in the following sequence of reactions C 3 H 5 N (A) H3 + PCl 5 ( ) 2 CuLi

5 CH 2 CN b) CH 2 NC C ) H 2 C NH d) C H 3 H 20.In which of the following case Hell-Volhard Zenlinsky reaction can takes place? H H b) H d)( ) 3 CCH 21) Major product of the following reaction is + (C 6 H 5 ) 3 P= CHC 6 H 5 1,2 diphenyl ethene (major) Trans b) Cis cis & trans d) Product formed in incorrect 22) When HCH reacts with a mixture of NH4CL & NaCN, then end preoduct is CH 2 =NH 2 b) CH 2 =N - CH 2 CN

6 NH 2 CH 2 CN H d) N 23) In the reaction CH HgS 4 /H 2 S 4 A b) CH H d) H CH 2 CH 24)Which of the following alcohols is oxides by alkaline KMn 4 into carboxylic acid? H C 2 H HC b) H C H 3 H d) CH 2 H 25) - toluic acid on a reaction with Br 2 /Fe gives

7 CH 2 Br H H b) Br H H Br d) Br 26. Acetone is obtained by the ozonolysis of 2-Methylpropene b)but-1-ene But-1-yne d)but-2-ene 27. Cannizzaro reaction is not given by HCH b)c 6 H 5 CH ( ) 2 CHCH d)( ) 3 CCH 28. When acetaldehyde is heated with Fehling solution gives precipitate of Cu 2 b)cu CuS 4 d)cu Methanal on reaction with ammonia gives aldemine b)pyridine formamide d)urotropine 30. The reagent used for preparation of benzaldehyde from benzene is, C,HCl b)cs 2,H 3 + Pd-BaS 4 d)cr 3, H Which Factors will increase the reactivity of >C= group i) Presence of a group with positive inductive effect ii) Presence of a group with negative with Negative inductive effect iii) Presence of large alkyl group nly (i) b) nly (ii) (i) & (iii) d) (ii) & (iii)

8 32. n reductive zonolysis Yields 6-xoheptanal b) 6-xoheptanoic Acid 6-hydroxyheptanal d) 3-hydroxypentanal 33. Methyl ethyl Ketone is prepared by the oxidation of 2-propanol b) 1-butanol 2-butanol d) t-butyl Alcohol 34. HCH and HCH are detected by NaHC 3 b) CuS 4 /NaH AgN 3 /NH 4 H d) Na 2 C Reaction of acetaldehyde with HCN followed by hydrolysis gives a compound which shows Metamerism b) Geometrical isomerism ptical isomerism d) Tautomerism` 36) Formaldehyde reacts with ammonia to give urotropine.the formula of urotropine is (CH 2 ) 6 N 4 b)(ch 2 ) 4 N 3 (CH 2 ) 6 N 6 d) (CH 2 ) 3 N 3 37) CH + MgBr Product H 2 A primary alcohol b) secondary alcohol tertiary alcohol d) ketone 38) Which does not react with Fehling solution Acetaldehyde b) Benzaldehyde

9 Glucose d) Formic acid 39) Which is not true about acetophenon Reacts to form 2,4-dinitrophenyl hydrazine b) Reacts with Tollens reagent to form silver mirror )Reacts with I 2 /NaH to form iodoform d) n oxidation with alkaline KMn 4 followed by hydrolysis gives benzoic acid 40) CH And C 6 H 5 CH 2 CH Can be distinguished chemically by Benedicts Test b) Iodoform test Tollens reagent test d) Fehling solution test 41. By which reaction a Ketone can be converted into hydrocarbons Aldol condensation b) Reimer-Tiemann Reaction Cannizzaro reaction d)wolff Kishner reaction 42. Glucose + Tollen s reagent Silver mirror Presence of CH group b) Presence of Keto group Presence of CH group d) Presence of CNH 2 group 43. When dihydroacetone is reacts with HI 4 the product is HCH b) HCH HCH and HCH d)hch and C Reactivity towards nucleophilic addition reaction of I) HCH II) CH III) C is II > III > I b) III > II > I I > II > III d)i > III > II

10 45. The reagent which doesnot give acid chloride on treating with carboxylic acid with PCl 5 b) Cl 2 SCl 2 d)pcl 3 46)An compound (A)C 5 H 10 forms phenyl hydrazone and give negative tollen s and iodoform test.compound (A) on the clemmenson s reduction gives n- pentane.identify?(a) CCH 2 CH 2 b) CH 2 CH 2 CH 2 CH 2 CH 2 CH CCH( ) 2 47)Treatment of propionaldehyde with dil.nah solution gives CH 2 CCH 2 C 2 H 5 b) CH 2 CHHCH 2 CH 2 CH C) CH 2 CH(H)CH( )CH d) CH 2 CCH 2 CH 2 CH 48)IUPAC name of diacetone amine is 2-methyl,4-oxo,pentan-2-amine b)4-amino pentan-2-one 4-amino pentan-3-one d)4-amino,4-methyl pentan-2-one 49)Lactic acid on heating with conc.h 2 S 4 gives Acetic acid Acrylic acid b)formic acid d)propionic acid 50)Identify X in the following reaction RCH H 3 X [H] R-CH 2 -NH 2 Alkane nitrile Aldoxime b)alkyl isonitrile d)ketoxime