Biomolecules Class 12 Notes Chemistry Chapter 14 1. Carbohydrates is a class of compounds that include polyhydric aldehydes and ketones and large number of other polymeric molecules that yield these on hydrolysis, e.g., sugars, glycogen, cellulose, starch, etc. 2. Depending upon their behaviour on hydrolysis, carbohydrates are further divided into three types: Monosaccharides … [Read more...]

Amines Class 12 Notes Chemistry Chapter 13 1. Amines are the derivatives of ammonia in which one or more hydrogen atoms have been replaced by alkyl groups. 2. Amines are classified as primary, secondary, or tertiary according as one, two or three hydrogen atoms in the ammonia molecule have been substituted by alkyl groups. 3. Preparation of amines: (i) By reduction of … [Read more...]

Alcohols, Phenols and Ethers Class 12 Notes Chemistry Chapter 11 1. Alcohols and phenols may be classified as monohydric, dihydric, trihydric or polyhydric according to number of hydroxyl groups they contain one, two, three or many respectively in their molecules. 2. Primary (1°), secondary (2°) and tertiary (3°) alcohols are those in which as the OH group is attached to a … [Read more...]

Aldehydes, Ketones and Carboxylic Acids Class 12 Notes Chemistry Chapter 12 1. The classes of organic compounds containing carbonyl group (CO) as the functional group are aldehydes, ketones, carboxylic acids and their derivates. These are collectively called carbonyl compounds. 2. Nature of carbonyl group: Oxygen atom in carbonyl group is far more electronegative than carbon … [Read more...]