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Which of the following has the smallest ...

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

A

But-1-ene

B

Trans- But-2-ene

C

Cis- But-2-ene

D

Buta-1,3-diene

Text Solution

Verified by Experts

The correct Answer is:
D
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MODERN PUBLICATION-HYDROCARBONS-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) (MULTIPLE CHOICE QUESTIONS WITH ONLY ONE CORRECT ANSWER)
  1. Which of the following can exhibit geometrical isomerism

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  2. Maleic acid and fumaric acid are :

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

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  4. Reaction of HBr with propene in the presence of peroxide gives :-

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  5. Oxidation of an alkene (X) gives a diol. Further oxidation gives a dik...

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  6. Acetylene is obtained by the electrolysis of

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  7. Arrange the following carbanions in order of their decreasing stabilit...

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  8. Which of the following will not react with an ammoniacal silver nitrat...

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  9. In the reaction : HC -= CH overset(NaNH(2)) to overset(CH(3)I)to Y u...

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  10. Number of acidic hydrogen atoms in but-1-yne is

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  11. The alkene which will react with KMnO(4) to give pyruvic acid is

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  12. Ethyne adds a molecule of methyl alcohol in the presence of alkali to ...

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  13. Which of the followig reagents may be used to distinguish between but-...

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  14. C(2)H(2) underset( H(2)SO(4))overset( Hg(OH)(2) 1%) (rarr) A overset( ...

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  15. Products of the following reaction are CH(3)-underset(CH(3))underset...

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  16. Benzene molecule has

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  17. Benzene reacts with acetyl chloride in the prescence of anhydrous AlCl...

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  18. An aromatic compound C(7)H(7)Cl on oxidation gives another aromatic co...

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  19. Which of the following species is less reactive than benzene towards r...

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  20. In benzene, each carbon atom undergoes

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