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, This conversion can be achieved by :...

, This conversion can be achieved by :

A

`NaNH_(2), CH_(3)CHO`

B

`NaNH_(2), CH_(3)-CH_(2)-CH_(2)-Br`

C

`KOH, CH_(3)-CH_(2)-Br`

D

`KOH, underset(Br)underset(|)(CH_(2))-underset(Br)underset(|)(CH_(2))`

Text Solution

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The correct Answer is:
B
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MS CHOUHAN-HYDROCARBONS (ALKYNES)-Level -1
  1. CH(3)CH(2)C-=CH underset("liq. " NH(3))overset(NaNH(2))rarr I Produ...

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  2. CH(3) - CH(2) - CH(2) - C -= CH + underset("Lithium amide")(LiNH(2)) r...

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  3. , This conversion can be achieved by :

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  4. Which alkyl will give 3-ethylhexane on catalytic hydrogenation ?

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  5. Reactant P gives products Q of R. The possible reagents are : (...

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  6. Br-(CH(2))(12) - C -= CH overset(NaNH(2))rarr (A) underset("Catalyst")...

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  7. Ph-C-=CH underset(MeOH)overset(MeO^(-))rarr Major product of the react...

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  8. Ph-underset(Cl)underset(|)overset(Cl)overset(|)(C)-CH(3) overset(3NaNH...

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  9. Which combination is best for preparation of the compound (A) shown be...

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  10. Which one of the following is the intermediate in the preparation of a...

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

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  12. H-C-=C-Ph , Product obtained in this reaction is :

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  13. CH underset((ii) CH(3)Br)overset((i) NaNH(2), NH(3))rarr (A) underset(...

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  14. Which of the following alkyne on treatment with H(2) (2 mole)/Pt gives...

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  15. underset("(Calcium carbide)")(CaC(2)) overset(H(2)O)rarr (A) overset("...

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  16. What is the final product, C, of the following reaction sequence ?

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  17. Compound (X) will be :

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  18. Choose the sequence of steps that describes the best synthesis of 1-bu...

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  19. Which alkyne yields butanoic acid (CH(3)CH(2)CH(2)CO(2)H) as the only ...

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  20. (A) Unit of unsaturation in compound (A) ?

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