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Chemical Reactivity (Group 1)

What is the f...

Question

What is the function of diethyl ether in the preparation of Grignard reagent?

A

To act as a catalyst

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B

To act as a solvent

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C

To provide lone pair of electrons for coordination

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D

To act as an acid

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Solution

The correct options are
B To act as a solvent
C To provide lone pair of electrons for coordination

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Similar questions

Grignard reagent is usually prepared by :

R - X + M g E t_{2} O - -- \to R M g X

Grignard reagent

A r - X + M g E t_{2} O - -- \to A r M g X

Grignard reagent

Grignard reagent acts as a strong base. Grignard reagent carry out nucleophilic attack in absence of acidic hydrogen. Grignard reagent form complex with its ether solvent. Complex formation with molecule of ether is an important factor in the formation and stability of Grignard reagent.

Which of the following Grignard reagents are not possible ?

Grignard reagent is usually prepared by :

R - X + M g E t_{2} O - -- \to R M g X

Grignard reagent

A r - X + M g E t_{2} O - -- \to A r M g X

Grignard reagent

Grignard reagent acts as a strong base. Grignard reagent carry out nucleophilic attack in absence of acidic hydrogen. Grignard reagent form complex with its ether solvent. Complex formation with molecule of ether is an important factor in the formation and stability of Grignard reagent.

How many different Grignard reagents when react with

E t O H

n -

butane as product (excluding stereoisomerism)

i) 2 H_{2} O_{2} \to Pt 2 H_{2} O + O_{2} ii) 2 H_{2} O_{2} - --- \to Glycerol 2 H_{2} O + O_{2}

What is the role of

P t

and glycerol in the above reaction?

Q. Assertion :Ammonia acts as a ligand. Reason: A lone pair of electrons on nitrogen can be donated to acceptor.

Q. Why H2O acts as unidentate molecule even though oxygen atom has 2 lone pair of electrons ?

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