#Grignard reaction

Preparation of Phenols and Ethers - Williamson and Other Methods

Which alcohol is produced when methyl magnesium bromide reacts with propanal followed by hydrolysis?

Methyl magnesium bromide (CH₃MgBr) reacts with propanal (CH₃CH₂CHO), adding the methyl group to the carbonyl, yielding butan-2-ol (CH₃CH(OH)CH₂CH₃) after hydrolysis.

Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Phenols and Ethers - Williamson and Other Methods

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Preparation of Phenols and Ethers - Williamson and Other Methods

Which compound reacts with CH₃MgBr followed by hydrolysis to form a tertiary alcohol?

Propan-2-one (CH₃COCH₃) reacts with CH₃MgBr, adding a methyl group to the carbonyl carbon, yielding 2-methylpropan-2-ol ((CH₃)3COH) after hydrolysis, which is a tertiary alcohol.

Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Phenols and Ethers - Williamson and Other Methods

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Preparation of Alcohols - from Alkenes Haloalkanes Carbonyls Grignard

Which alcohol is produced when ethyl magnesium bromide reacts with ethanal followed by hydrolysis?

Ethyl magnesium bromide (CH₃CH₂MgBr) reacts with ethanal (CH₃CHO), adding the ethyl group to the carbonyl, yielding butan-2-ol (CH₃CH(OH)CH₂CH₃) after hydrolysis.

Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Alcohols - from Alkenes Haloalkanes Carbonyls Grignard

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Physical Properties and Acidity of Alcohols and Phenols

Which alcohol is produced when ethyl magnesium bromide reacts with propanal followed by hydrolysis?

Ethyl magnesium bromide (CH₃CH₂MgBr) reacts with propanal (CH₃CH₂CHO), adding the ethyl group to the carbonyl, yielding pentan-3-ol (CH₃CH₂CH(OH)CH₂CH₃) after hydrolysis.

Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Physical Properties and Acidity of Alcohols and Phenols

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Classification and Nomenclature and Structures of Alcohols Phenols Ethers

How is 2-methylpropan-2-ol synthesized from methyl magnesium bromide?

Methyl magnesium bromide (CH₃MgBr) reacts with acetone (CH₃COCH₃), adding the methyl group to the carbonyl carbon, and hydrolysis yields 2-methylpropan-2-ol ((CH₃)3COH).

Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Classification and Nomenclature and Structures of Alcohols Phenols Ethers

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Chemical Reactions of Phenols and Ethers and Uses

Which alcohol is produced when propyl magnesium bromide reacts with formaldehyde followed by hydrolysis?

Propyl magnesium bromide (CH₃CH₂CH₂MgBr) reacts with formaldehyde (HCHO), adding the propyl group to the carbonyl, yielding butan-1-ol (CH₃CH₂CH₂CH₂OH) after hydrolysis.

Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses

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Polyhalogen Compounds - Chloroform Iodoform DDT Freons

What is the product when CH₃CH₂CHClCH₃ reacts with Mg in dry ether, followed by H₂O ?

CH₃CH₂CHClCH₃ forms a Grignard reagent with Mg , which hydrolyzes with H₂O to CH₃CH₂CH₂CH₃ (butane).

Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Polyhalogen Compounds - Chloroform Iodoform DDT Freons

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