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Which of the following will have least h...

Which of the following will have least hindered rotation about C-C bond ?

A

Ethane

B

Ethylene

C

Acetylene

D

Hexachloro ethane

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The correct Answer is:
A
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MBD PUBLICATION-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES-QUESTION TYPE
  1. In butane, which of the following form has the least stable ?

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  2. The structures that do not actually exist are called:

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  3. Which of the following will have least hindered rotation about C-C bon...

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  4. The strongest base and nucleophile among the following is:

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  5. The number of pi- electrons present in cyclobutasdienyl anion (C4H4)^2...

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  6. Removal of hydrogen atom is easier when it is attached to:

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  7. Unpaired electron in CH3 occupies:

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  8. Which one of the following will most readily be dehydrated in acidic c...

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  9. Dichloro ethylene shows:

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  10. "The negative part of the addendum adds on the carbon atom joined to t...

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  11. The production of an optically active compound from a symmetric molecu...

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  12. Heterolysis of propane gives:

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  13. Which one of the following is found in alkenes ?

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  14. The maximum number of positional isomers for an alkene with molecular...

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  15. The process of separation of racemic mixture into d- and l-enantiomers...

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  16. In which of the following species the central carbon atom is negativel...

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  17. The number of different substitution products possible when ethane is ...

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  18. Which of the following contains only three pairs of electrons ?

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  19. Which of the following is optically active?

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  20. Which group has the maximum -I effect ?

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