Alcohols are the group of the organic compounds which contains carbon, hydrogen and oxygen.These are obtained by replacement of one hydrogen atom with the hydroxy group.
Alcohols are classified according to number of hydroxyl groups present in their molecule. Alcohols with one, two and three hydroxyl groups are called monohydric, dihydric & trihydric alcohols respectively. Alcohols which contains four or more hydroxyl groups are called polyhydric alcohols.
Methanol Ethylene glycol Glycerol Butane - 1,2,3,4- tetrol
Monohydric alcohols are further divided into three classes :
(i) Primary alcohol : The hydroxyl group is attached with primary carbon atom. They possess a characteristic group
(ii) Secondary alcohol : The hydroxyl group attached to secondary carbon atom. They possess group.
Propane - 2 - ol
(iii) Tertiary alcohol : The hydroxyl group attached to tertiary carbon atom. They possess a characteristic group C - OH.
2 - Methyl propan - 2 - ol
1. The first two members of alcohol; methanol and ethanol, are volatile liquids.
2. All alcohols are neutral to indicators.
Which of the following are correct : (a) The boiling point of alcohols increases as their molecular mass increases. (b) Alcohols are poor conductors of electricity because hydrogen in the hydroxyl group does not ionize. | |||
Right Option : C | |||
View Explanation |
Alcohol react with metallic sodium to liberate ____________________________. | |||
Right Option : A | |||
View Explanation |
Alcohols react with _____________________ to form a class of compounds called esters. | |||
Right Option : A | |||
View Explanation |
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