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In which of the following, the DeltaH(h)...

In which of the following, the `DeltaH_(h)^(@)` is maximum ?

A

`CH_(2)=CH_(2)`

B

`CH_(2)=C=CH_(2)`

C

D

Text Solution

Verified by Experts

The correct Answer is:
b
Cumulative diene (allene) is the least stable and, hence, `DeltaH_(h)^(@)` is the maximum.
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CENGAGE CHEMISTRY-ALKENES AND ALKADIENES-Single Correct Answer Type
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  2. Which statement is correct about cyclopentadienyl anion ?

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  3. In which of the following, the DeltaH(h)^(@) is maximum ?

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  4. Compound (C) is :

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  5. The decreasing order of reactivity towards electrophilic addition (e.g...

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  6. (B)overset(2mol)underset(Cl(2)+hv)(rarr) (C)overset(2mol)underset(Alc....

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  7. Which of the following reagents can be used for the reaction given bel...

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  8. Compound (A)(C(5)H(10)) does not dissolve in cold conc. H(2)SO(4). Wha...

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  9. Product (B) and name of the reaction in the formation of (B) are :

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  10. Which statement is correct ?

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  11. Compound (B) is :

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  12. Which reagents could be used to carry out the following reaction ?

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  13. Which reagent is used for the conversion of (A) to (B) ?

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  14. Product (B) is :

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  15. Which reagent cannot be used for the above conversion ?

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  16. Which one is the moset easily dehydrated ?

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  17. The number of geometrical isomers of (A) can be :

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  18. Meso- and racemic -2,3-dibromobutane on reaction with Nal in acetone g...

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  19. The racemic -2,3-dibromopentane on reaction with KI in acetone give :

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  20. (A) is 2,3-dibromobutan -1,4-dioc acid. Which stereochemical reactant...

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