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Which of the following has the smallest ...

Which of the following has the smallest heat of hydrogenation per mole ?

A

cls`-2-`Butene

B

trans`-2-`Butene

C

`1-`Butene

D

`1,3-`Butadiene

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The correct Answer is:
D
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ALLEN-ALKENE, ALKANE & ALKYNE -EXERCISE-1
  1. The reduction 4-octyne withH(2) in the presence of Pd//CaCO(3)- quioli...

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  2. The ease of formation of free radicals follows the order -

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  3. Which of the following has the smallest heat of hydrogenation per mole...

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  4. The intermediate formed during the addition of HCl to propene in the p...

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  5. The order of stability of the alkenes underset(I)(R(2)C=CR(2)') unde...

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  6. Which of the following will not react with an ammonical silver nitrate...

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  7. The correct order of reactivity towards the electrophilic substitution...

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  8. Which of the following order is correct for the decreasing reactivity ...

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  9. Electrophile overset(o+)NO(2) attacks the following : In which ca...

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  10. The strongest deactivating effect on benzene ring is

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  11. Which of the following is the most reactive towards ring nitration ?

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  12. The order of decreasing reactivity towards an electrphilic reagent for...

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  13. Increasing order of the following for electrophilic substitution react...

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  14. Among the compounds the order of decreasing reactivity towards electro...

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  15. Choose the most reactive among the following compound :

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  16. The number of possible isomers of dichloronitrobenzene is :

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  17. The major product formed on monobromination of phenylbenzoate is :

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  18. The major product formed in the reaction is :

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  19. The electrophilic aromatic substitution of a compound C(6)H(5)Y produc...

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  20. Which of the following is an o-, p-directing but deactivating substitu...

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