CH3-CH2-CH2-CCH+LiHN2(A)(CH3)2SO4(B)

Give the structural formula of compound (B):

(a) CH3-(CH2)2-CC-SO3H

(b) CH3-(CH2)2-CC-CH3

(c)  CH3-(CH2)2-CC-CH2-O-OsO-H

(d) CH3-CH2-CC-CH2

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; This conversion can be achieved by:

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Which alkyne will give 3-ethylhexane on catalytic hydrogenation?

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                                       Lindlar
Br-(CH2)12-C CH
 (A)(B);Product (B) is :
                           NaNH2   Catalyst
1.2.
3.4. 


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Ph - C CHMeOHMeO- Major product of the reaction is:

(a) 

(b) 

(c) Ph - C C-OMe

(d) 

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            ClPh-C||-CH3 3NaNH2 (A)            Cl                         product ; Product (A) is:

 

(a) Ph-CH=CH2          (b) Ph-CCH              (c) Ph-CH2-CH3             (d) Ph-CCNa

                               

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To carry out above conversion, (A) and (B) respectively, are :

(a) NaNH2, Cl - CH2ーCH- CH- Br
(b) NaNH2, CH2-CH2-CH2-Br
(c) NaNH2, l-CH2ーCH2-CH2-Br
(d) NaNH2, I-CH2-CH2-CH2-I

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H-CC-Ph Product; Product obtained in this reaction is:

(a) Ph-C|I=CH-I

(b) PH-CH|I-CH2-i

(c) Ph-CC-I

(d) I-CC-H

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(a)(b)(c)(d)

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Which of the following alkyne on treatment with H2(2 mole)/ Pt gives an optically inactive compound ?

(a) 3-Methyl-1-pentyne

(b) 4-Methyl-1-hexyne

(c) 3-Methyl-1-heptyne

(d) None of the above

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