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The replacement of diazonium group by fl...

The replacement of diazonium group by fluorine is known as

A

Gattermann reaction

B

Sandmeyer reaction

C

Balz-Schiemann reaction

D

Etard reaction

Text Solution

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The correct Answer is:
C
When diazonium salt is treated with fluoroboric acid (`HBF_4` ), benzene diazonium fluoroborate is precipitated, which on heating gives fluorobenzene. This reaction is called Balz-Schiemann reaction.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ORGANIC COMPOUNDS CONTAINING NITROGEN -MHT CET CORNER
  1. The amine 'A' when treated with nitrous acid gives yellow oily substan...

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  2. Which of the following will be most stable diazonium salt RN(2)^(+)Xba...

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  3. The replacement of diazonium group by fluorine is known as

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  4. R-C-=N+2H((i) SnCl(2)//"dil".HCl)/((ii)H(3)O^(+))RCHO + NH(4)Cl this ...

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  5. Diethyl amine when treated with nitrous acid yields

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  6. Identify the alkene that is produced in the following series of reacti...

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  7. An organic compound X having molecular formula C4H11N reacts with p-to...

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  8. Nitrobenzene on reaction with conc. (HNO3)/(H2SO4) at 80-100^@C forms ...

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  9. Some meta-directing substituents in aromatic substitution are given wh...

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  10. Which of the following is the strongest base?

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  11. In the following sequence of reactions CH-underset(NH(2))underset(|)...

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  12. In the following reaction sequence, CH3CHO underset(Ca(OH)2)overset(Cl...

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  13. Which of the following amines gives yellow oily liquid with HNO2 ?

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  14. N-ethyl-N-methylpropan-1-amine is

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  15. What is the end product in the following sequence of operations? C2 ...

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  16. The compound that forms a yellow oily liquid with nitrous acid is

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  17. Iso -propylamine is a

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  18. When acetamide is treated with Br(2) and caustic soda, then we get

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  19. On heating benzyl amine with chloroform and ethanolic KOH, product obt...

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  20. A mixture of ethyl amine and alcoholic KOH on heating gives

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