Trying to find the right answer to this..

In AgNO 2 the nucleophile is NO 2 – group while in potassium nitrite (KNO 2 ) the nucleophile is O – —N = O group. Therefore, these two reagents form two types of compounds with haloalkanes. (i) (ii)

Book Store

Download books and chapters from book store.
Currently only available for.
CBSE Gujarat Board Haryana Board

Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12

When a haloalkane reacts with AgNO₂ then nitroalkane is formed but the reaction of KNO₂ with a haloalkane gives alkyl nitrite. Give reasons and write the two reactions.

In AgNO₂ the nucleophile is NO₂^– group while in potassium nitrite (KNO₂) the nucleophile is O^–—N = O group. Therefore, these two reagents form two types of compounds with haloalkanes.

(i)

(ii)

338 Views

What is Grignard reagent and is it prepared?

Grignard reagents: Alkyl magnesium halides (RMgX) are called Grignard reagents.
Preparation of Grignard reagents: When a solution of alkyl halide (R—X) in ether is allowed to stand over magnesium turning for some time then metal gradually dissolves. In this reaction alkyl magnesium halide is formed. This compound is called Grignard reagent.

246 Views

Write the nucleophilic reaction for the conversion of haloalkanes to alkanes.

Grignard reagents are highly reactive and react with haloalkane give alkane.

106 Views

Give an example of elimination reaction shown by haloalkanes.

Elimination reaction shown by haloalkanes: When haloalkanes with β-hydrogen atom is heated with alcoholic solution of potassium hydroxide, there is elimination of hydrogenvatom from β-carbon and a halogen atom from the α-carbon atom.

As a result, an alkene is formed as a product.

125 Views

What is meant by dehydrohalogenation?

Dehydrohalogenation is the elimination reaction shown by a haloalkane which involves the removal of the halogen atom together with a hydrogen atom bonded to a C atom adjacent to C atom bearing the halogen. As a result of dehydro– halogenation an alkene is formed. For example:

In the above reaction the Br atom bonded to carbon 1 and H atom bonded to carbon 2 of 1 -bromo propane are eliminate and propene is formed.

183 Views

Chapter Chosen

Book Chosen

Subject Chosen

Book Store

Previous Year Papers

Haloalkanes and Haloarenes

When a haloalkane reacts with AgNO₂ then nitroalkane is formed but the reaction of KNO₂ with a haloalkane gives alkyl nitrite. Give reasons and write the two reactions.

Chapter Chosen

Book Chosen

Subject Chosen

Book Store

Previous Year Papers

Haloalkanes and Haloarenes

When a haloalkane reacts with AgNO2 then nitroalkane is formed but the reaction of KNO2 with a haloalkane gives alkyl nitrite. Give reasons and write the two reactions.

When a haloalkane reacts with AgNO₂ then nitroalkane is formed but the reaction of KNO₂ with a haloalkane gives alkyl nitrite. Give reasons and write the two reactions.