Medium
Explain the classification of alcohols with examples.
(N/A) Alcohols and phenols can be classified as mono-,di-,tri-,or polyhydric compounds depending on whether they contain one,two,three,or many hydroxyl $(-OH)$ groups respectively in their structures.
$1$. Monohydric alcohols: Contain one $-OH$ group. Example: Ethanol $(C_2H_5OH)$.
$2$. Dihydric alcohols: Contain two $-OH$ groups. Example: Ethane-$1,2$-diol $(CH_2OH-CH_2OH)$.
$3$. Trihydric alcohols: Contain three $-OH$ groups. Example: Propane-$1,2,3$-triol $(CH_2OH-CHOH-CH_2OH)$.
$1$. Monohydric alcohols: Contain one $-OH$ group. Example: Ethanol $(C_2H_5OH)$.
$2$. Dihydric alcohols: Contain two $-OH$ groups. Example: Ethane-$1,2$-diol $(CH_2OH-CH_2OH)$.
$3$. Trihydric alcohols: Contain three $-OH$ groups. Example: Propane-$1,2,3$-triol $(CH_2OH-CHOH-CH_2OH)$.
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MediumAIPMT 2006
View SolutionMatch the items in Column-$I$ with the appropriate items in Column-$II$.
Column-$I$ Column-$II$ $(A)$ One or more hydroxyl $(-OH)$ groups are directly attached to the carbon of an aliphatic system. $(1)$ Water $(B)$ $-OH$ group is directly attached to the carbon of an aromatic system. $(2)$ Phenol $(C)$ Alkyl or aryl group replaces the $H$ of the $-OH$ group of alcohol or phenol. $(3)$ Ether $(D)$ Hydrogen replaces the $-R$ group of alcohol. $(4)$ Alcohol $(5)$ None
| Column-$I$ | Column-$II$ |
| $(A)$ One or more hydroxyl $(-OH)$ groups are directly attached to the carbon of an aliphatic system. | $(1)$ Water |
| $(B)$ $-OH$ group is directly attached to the carbon of an aromatic system. | $(2)$ Phenol |
| $(C)$ Alkyl or aryl group replaces the $H$ of the $-OH$ group of alcohol or phenol. | $(3)$ Ether |
| $(D)$ Hydrogen replaces the $-R$ group of alcohol. | $(4)$ Alcohol |
| $(5)$ None |
Difficult
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