Ch 7 Chemistry Class 12 Sindh Board Notes
Important Easy Notes of Ch 7 Chemistry Class 12 Sindh Board Notes written by Professor Mr. Moeez Khan Suib. These notes are very helpful in the preparation of Chemistry for students of the 12th class and these are according to the paper patterns of all Sindh Book Boards.
Summary and Contents:
Topics which are discussed in the notes are given below:
- Classification of alcohol: (i) Monohydric alcohol (ii) Dihydric alcohol (iii) Trihydric alcohol.
- Classification of monohydric alcohols
- Structure of alcohol and physical properties of alcohol
- Preparations of alcohols: (1) Hydration of alkenes (2) Hydrolysis of an alkyl halide (3) Reaction of Grignard's Reagent with Aldehyde & Ketone.
- (i) Reaction with formaldehyde (ii) Reaction with acetaldehyde ( Ethanal) (iii) Reaction with Acetone (iv) Reduction of Aldehyde and Ketone (v) Reaction of Grignard's reagent with esters. (vi) Reduction of Carboxylic Acid and Esters.
- Reaction with halogen acids.
- Dehydration of alcohol, Oxidation of alcohol, Cleavage of 1,2 - diols.
- Uses of alcohol
- Classification of Phenols
- Physical properties of Phenols
- Preparation of Phenol: (i) from chlorobenzene (ii) from sodium benzene sulphonate (iii) hydrolysis of diazonium salt.
- Electrophilic Aromatic Substitution: (i) Nitration of Phenol (ii) Sulphonation of Phenol (iii) Halogenation of Phenol.
- Differentiate between alcohol and phenol.
- Uses of Phenol
- Preparation of Ethanol: Dehydration of alcohol (ii) Williamson synthesis.
- Physical properties of Ether and chemical reactivity of ether
- Uses of ethers
- Solved Multiple Choice Questions (MCQ's) of the Ch 7 Chemistry Class 12 Sindh Board Notes.
- Define Phenol. Write the equations of all preparation of phenol from. (I) Chlorobenzene (ii) Sodium Benzene Sulphonate.
- Explain the following with the scientific reason
- (i) Boiling point of ether is less than alcohol?
- (ii) Alcohols are soluble in water?
- (iii) Ethanol is liquid but ethyl chloride is gas at room temperature.
- Identify each of the following will do laboratory tests: (i) Phenol (ii) Alcohol.
- What is Lucus reagent? Describe its uses to distinguish between primary, secondary and tertiary alcohol.
- What is oxonium ion? How can ether form oxonium ion?
- What are alcohols? How alcohols are the classified?
- Starting from Grignard reagents how is primary, secondary tertiary alcohol prepared?
- Write the equations of all the following possible conversions.
- (i) Ethyl alcohol to diethyl Ether
- (ii) Phenol to benzoquinone
- (iii) Ethyl bromide to ethanol
- Differentiate between alcohol and phenol on the basis of: (i) solubility in water (ii) Boiling point (iii) Acidic character.
- Write the equation and name the final product when phenol reacts with the following: (i) Hot and concentrated nitric acid (ii) Concentrated sulphuric acid at 100°C (iii) Bromine water (iv) Sodium Metal.
- Enlist the commercial applications of alcohol, phenol, and Ether.