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Which of the following is an electrophil...

Which of the following is an electrophile reagent ?

A

`RO^-`

B

`BF_3`

C

`NH_3`

D

ROH

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The correct Answer is:
B
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MBD PUBLICATION-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES-QUESTION TYPE
  1. Metamerism is shown by:

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  2. Which of the following is an electrophile ?

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  3. Which of the following is an electrophile reagent ?

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  4. Electrophiles are:

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  5. The increasing order of + I effect shown by H, CH3, C2H5 and C3H7 is:

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  6. Which of the following is an electrophile reagent ?

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  7. The reaction, C2H5I + KOHrarr C2H5OH + KI is called :

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  8. Homologous compounds have:

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  9. To which ring size cycloalkanes, Baeyer's strain theory is not valid ?

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  10. The first organic compound was synthesized in the laboratory by:

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  11. Which of the following are position isomers ?

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  12. Which of the following compounds give two geometrical isomers?

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  13. Of the following compounds which will have a zero dipole moment ?

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  14. Only two isomeric monochloro derivatives are possible for:

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  15. Anti Markonikov's rule only applicable for addition of:

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  16. Write the order of stability of carbanions ?

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  17. The reagent used in dehydrohalogenation process is:

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  18. A carbonium ion is formed when a covalent bond between two atoms in an...

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  19. In carbonium ion the carbon bearing the positive charge is:

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  20. An organic compound C5H11X an dehydro-halogenation gives pentene-2 onl...

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