18 Questions
Alcohols are organic compounds where a hydroxyl group replaces the ______ atom of an aliphatic carbon.
hydrogen
An alcohol molecule consists of two parts: the alkyl group and the ______ group.
hydroxyl
Like water, alcohols are polar containing an unsymmetrical distribution of charge between the oxygen and ______ atoms.
hydrogen
Types of Alcohol: Monohydric alcohols contain ______ -OH group.
one
Based on the number of carbon atoms attached to the carbon bonded to the -OH group, alcohols are classified into three types: Primary alcohol has ______ carbon atom attached.
one
Glycerol is an example of a ______ alcohol.
trihydric
The presence of hydroxyl group is the main factor in determining the ______ of alcohol.
properties
Alcohols are more water-soluble than simple hydrocarbons due to the presence of the polar ______.
OH
Alcohols are able to form hydrogen bonds, resulting in higher ______ points compared to hydrocarbons.
boiling
The boiling point of alcohols decreases with an increase in ______ in aliphatic carbon chains.
branching
Alcohols dissolve in water due to the presence of ______ bonds.
hydrogen
Alcohols have many uses in our everyday world. They are found in beverages, antifreeze, antiseptics, and ______.
fuels
Ethanol is most prominent in nature as it is the product of ______.
fermentation
Chemical Properties of Alcohol: Lucas test is used to distinguish between alcohols according to the rate of reaction. Tertiary alcohol reacts directly with Lucas reagent. The reactivity order is 30 > 20 > 10 > ______.
methanol
Oxidation by cold KMnO4: Primary alcohol oxidizes to form ______.
Aldehyde
Formation of Halides: Halogens such as chlorine or bromine replace the -OH group in an alcohol. ROH + HCl → R-Cl + ______
H2O
Reaction with HNO3: The reaction of some alcohols with nitric acid, HNO3, gives ______ esters.
nitrate
Dehydration of Alcohol: The dehydration reaction of alcohols to generate alkene proceeds by heating the alcohols in the presence of a strong acid, such as sulfuric or phosphoric acid, at high ______.
temperatures
Learn about the Lucas test, which is used to distinguish between primary, secondary, and tertiary alcohols. Explore the chemical properties of alcohols and their diverse applications in everyday life, science, and industry.
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