Tiêu đề 12. ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES.pdf ✅

PAPER 1 (1.) , and Number of secondary carbon atoms present in the above compounds are respectively : (1) 6, 4,5 (2) 4,5,6 (3) 5, 4,6 (4) 6,2,1 (2.) Examine the following structures : (A) (B) Which of the following statement is correct (1) A is tertiary alcohol while B is tertiary amine (2) A is primary alcohol while B is primary amine (3) A is tertiary alcohol while B is primary amine (4) A is primary alcohol while B is tertiary amine (3.) The common name of given ester is - (1) neo butyl iso butyrate (2) t-butyl n- butyrate (3) t- butyl iso butyrate (4) iso butyl iso butyrate (4.) The structure of allyl vinyl thioether is - (1) CH CH CH S CH CH CH 2 2 2 2 = − − − − = (2) CH CH S CH CH CH 2 2 2 = − − − = (3) CH CH S CH CH 2 2 = − − = (4) None (5.) The correct IUPAC name of 2-ethyl-3-pentyne is : (1) 3-methyl hexyne-4 (2) 4-ethyl pentyne-2 (3) 4-methyl hexyne-2 (4) None of these (6.) I.U.P.A.C. name of
is (1) 4, 5-dimethyl oct-4-ene (2) 3, 4-dimethyl oct-5-ene (3) 4, 5-dimethyl oct-5-ene (4) None (7.) The IUPAC name of is - (1) 4-ethyl -3- methyl hexane (2) 3-ethyl -4- methyl hexane (3) 3-methyl-4- ethyl hexane (4) None of these (8.) The IUPAC name of is - (1) 2-ethyl-3-methyl-1-penten-4-yne (2) 2-ethyl-3-methyl-4-pentyn-1-ene (3) 4-ethyl-3-methyl-1-pentyn-4-ene (4) 4-ethyl-3-ethyl-4-penten-1-yne (9.) What is the correct IUPAC name for the following compound? (1) 3,4-Dimethyl-3-n-propyl nonane (2) 6, 7-Dimethyl-2-n-propyl nonane (3) 6,7-Dimethyl-7-ethyl decane (4) 4- Ethyl-4, 5-dimethyl decane (10.) The IUPAC name of the compound is: (1) 2-cyclohexyl butane (2) 2-phenyl butane (3) 3-cyclohexyl butane (4) 3-phenyl butane
(11.) Give the IUPAC name of (1) 4-isopropyl-5-ter. butyl octane (2) 4-ter. butyl-5-isopropyl octane (3) 2-methyl-3-propyl-4-ter. butyl heptane (4) 2, 2-dimethyl-3-propyl-4-isopropyl heptane (12.) The correct IUPAC name of CH CH C COOH 3 2 − − − is : CH2 (1) 2-methyl butanoic acid (2) 2-ethyl-2-propenoic acid (3) 2-carboxy-1-butene (4) None of the above (13.) The IUPAC name of this compound is : (1) 2-fluoro-4-chloro-2,4-diethyl pentane (2) 3-fluoro-5-chloro-3-methyl-5-ethyl hexane (3) 3-chloro-5-fluoro-3,5-dimethyl heptane (4) 3,5-dimethyl-5-fluoro-3-chloro heptane (14.) The I.U.P.A.C. name of ( 2 5 2 )2 C H CH CH OH  is (1) 2-ethyl butanol-1 (2) 2-methyl pentanol-1 (3) 2-ethyl pentanol-1 (4) 3-ethyl butanol-1 (15.) The IUPAC name of the given compound is : (1) 1, 1-dimethyl-3-hydroxy cyclohexane (2) 3,3-dimethyl-1-hydroxy cyclohexane
(3) 3, 3-dimethyl-1-cyclohexanol (4) 1,1-dimethyl-3-cyclohexanol (16.) As per IUPAC rules, which one of the following groups, will be regarded as the principal functional group? (1) −  − C C (2) −OH (3) (4) (17.) The suffix of the principal group, the prefixes for the other groups and the name of the parent in the structure are given by the set : (1) -oic acid, chloro, hydroxy, oxo, methyl, 4-heptene (2) -oic acid, chloro, hydroxy, methyl, oxo, 4-heptene (3) -one, carboxy, chloro, methyl, hydroxy, 4-heptene (4) carboxy, -one, chloro, methyl, hydroxy, 4-heptene (18.) The IUPAC name of compound (1) Tricarboxy methane (2) Propane trioic acid (3) Tributanoic acid (4) 2-carboxy propanedioic acid (19.) Which of the following are tertiary radicals :- (a)