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Practice Online Test Series for JEE Main 2018 & NEET 2018

For the reaction `R—Br -> R—O—N=O`, the suitable reagent is :–

For the reaction `R—Br -> R—O—N=O`, the suitable reagent is :–

A.

`NaNO_2 + HCl`

B.

`HNO_2`

C.

`AgNO_2`

D.

`KNO_2`

Solution

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Alkyl nitrites are prepared by the action of alkyl halide and potassium nitrite only, but in case of silver nitrite, the main product is nitro-alkane, although a small amount of alkyl nitrite is also formed. `R–Br + KNO_2 -> R–O–N=O + KBr`

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