Title 10.HALOALKANES AND HALOARENES - Questions.pdf ✅

(12.)Ethyl ortho formate is formed by heating ............ with sodium ethoxide. (a.) CHCl3 (b. ) C2H5OH (c.) HCOOH (d.) CH3CHO (13.)Best method of preparing alkyl chloride is (a.) ROH + SOCl2 ⟶ (b. ) ROH + PCl5 ⟶ (c.) ROH + PCl3 ⟶ (d. ) ROH + HCl Anhy.ZnCl2 → (14.)Which of the following will not respond to iodoform test? (a.) Ethyl alcohol (b.) Propanol-2 (c.) Propanol-1 (d.) Ethanal (15.)Maximum number of molecules of CH3I that can react with a molecule of CH3NH2 are (a.) 3 (b.) 4 (c.) 2 (d.) 1 (16.)Which of the compounds when brominated turns to meso 2, 3-dibromobutane? (a.) Cis-2-butene (b.) Iso-butane (c.) Butane (d.) Trans-2-butene (17.)Which of the following statements about benzyl chloride is incorrect? (a.) It is less reactive than alkyl halides (b.) It can be oxidised to benzaldehyde by boiling with copper nitrate solution (c.) It is a lachrymatory liquid and answers Beilstein’s test (d.) It gives a white precipitate with alcoholic silver nitrate (18.)The reaction in which phenol differs from alcohol is (a.) It undergoes esterification with carboxylic acid (b.) It reacts with ammonia (c.) It forms yellow crystals of iodoform (d.) It liberates H2 with Na metal (19.)In the reaction, 2A + dry oxide ∆ → ether + 2AgX A is a/an (a.) Primary alcohol (b.) Acid (c.) Alkyl halide (d.) Alcohol (20.)The alkyl halides that can be made by free radical halogenation of alkanes are (a.) RCl and RBr but not RF or RI (b.) RF,RCl and RBr but not RI (c.) RF, RCl, RBr, RI (d.) RF, RCI and RI but not RBr (21.)X compound reacts with Na to give CH3 CH2 CH2 CH3 , then compound X is (a.) CH3 CH2OH (b. ) CH3 CH2 − Cl (c.) CH3 − CH3 (d. ) CH3CH2CH2CH2 OH (22.)p-nitrobromobenzene can be converted to p- nitroaniline by using NaNH2. The reaction proceeds through the intermediate named (a.) Carbocation (b.) Carbanion (c.) Benzyne (d.) Dianion (23.)Elimination of bromine from 2-bromobutane results in the formation of (a.) Predominantly 2-butyne (b.) Predominantly 1-butene (c.) Predominantly 2-butene (d.) Equimolar mixture of 1 and 2-butene (24.)What happens if CCl4 is treated with AgNO3? (a.) A white ppt. of AgCl will form (b.) NO2 will be evolved (c.) CCl4 will dissolve in AgNO3 (d.) Nothing will happen (25.)The organic chloro compound, which shows complete stereochemical inversion during an SN2 reaction is (a.) (C2H5 )2 CHCl (b. ) (CH3 )3CCl (c.) (CH3 )2 CHCl (d. ) CH3Cl (26.)Identify X and Y in the following sequence C2H5Br X → product Y → C3H7NH2 (a.) X = KCN, Y = LiAlH4 (b. ) X = KCN, Y = H3O + (c.) X = CH3 Cl, Y = AlCl3/HCl (d. ) X = CH3 NH2, Y = HNO2 (27.)1-chlorobutane on reaction with alcoholic potash gives (a.) but-1-ene (b.) butan-1-ol (c.) but-2-ene (d.) butan-2-ol (28.)Which of the following applies in the reaction, CH3CHBrCH2CH3 Alc.KOH → (i)CH3CH = CHCH3 (major product) (ii) CH2 = CHCH2CH3 (minor product) (a.) Markownikoff’s rule (b.) Saytzeff’s rule