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WorksheetsAlcohols and carboxylic acids
Total questions: 15
Worksheet time: 13mins
Main functional group present in alcohol is _______.
-COOH
C-C
-OH
C=C
General formula for alcohol is ________.
CnH2n+1O
CnH2n+1OH
CnH2nOH
CnH2n+1COOH
What are the products of complete combustion of ethanol?
CO2 and H2O
CO2 and H2
C and H2O
CO2 and O2
Which two functional groups are present?
two alcohols
aromatic and amine
ketone and ester
carboxylic acid and alcohol
All the members of alcohol homologous series have similar chemical properties.
True
False
The boiling points of alcohols are _______ that those of alkanes because of __________
higher, polarity
lower, hydrogen bonding
higher, hydrogen bonding
similar, polarity
Arrange the following alcohols in order of increasing boiling point: A:(CH3)3COH, B:CH3(CH2)4OH, C:(CH3)3CCH2OH, and D:(CH3)2CHCH2CH2OH.
A<C<D<B
A<D<C<B
B<A<D<C
D<B<C<A
Ethanol is formed by :
1. Fermentation ;
2. reaction between steam and ethene.
Which of these processes uses a catalyst?
Both 1 and 2
Only 1
Only 2
none of the above
An organic compound has the molecular structure shown. Which type of organic compound is this?
alcohol
alkane
alkene
carboxylic acid
Ethanol is manufactured from petroleum by reacting ethene with steam. Which statement about this process is incorrect?
Ethene is obtained from the cracking of alkanes.
The process is carried out in the presence of yeast.
The reaction is an addition reaction.
The rate of reaction is increased by a catalyst.
Ethanol is made by fermentation. How is ethanol obtained from the fermentation mixture?
chromatography
crystallization
electrolysis
fractional distillation
Which of the following carboxylic acids has the highest boiling point?
heptanoic acid
octanoic acid
nonanoic acid
decanoic acid
Which of these molecules is named ethanoic acid
Vinegar tastes sour because of
Ethanoic acid
Ethanol
Butanoic acid
Ethyl ethanoate
What is true about carboxylic acids?
Carboxylic acids are strong acids
Carboxylic acids can react with metals
Alkanes oxidize to form carboxylic acids
Carboxylic acids cannot form hydrogen bonds
