WorksheetsChemistry AS Module 4.2 Foundations
Total questions: 20
Worksheet time: 10mins
What type of alcohol is this?
Primary
Secondary
Tertiary
Select the true statements about alcohols:
Hydrogen bonding occurs between alcohol molecules
Alcohols have a lower boiling point compared to the corresponding alkane
Long carbon chain alcohols are soluble in water
Alcohol are less volatile compared to the corresponding alkane
What is the product from heating a secondary alcohol under reflux?
Carboxylic acid
Ketone
Tertiary alcohol
aldehyde
What observation is made when a primary or secondary alcohol is oxidised using acidified potassium dichromate?
Colour change from green to orange
Colour change from orange to green
Colour change from red to green
Colour change from blue to yellow
What ester is formed when ethanoic acid reacts with methanol?
Methy ethyl ester
Ethyl methanoate
Methyl ethanoate
Propanoic ester
When alcohols are heated with a strong acid, what type of compound is formed?
Ketone
Alkene
Alkane
Aldehyde
Haloalkanes can react with OH- to form alcohols. What type of reaction is this called?
Electrophilic addition
Electrophilic substitution
Nucleophilic addition
Nucleophilic substitution
The rate of hydrolysis is fastest for which haloalkane?
1-Fluorobutane
1-chlorobutane
1-bromobutane
1-iodobutane
What technique is shown here:
(a)
A separating funnel is used to:
separate miscible liquids
Separate a solid from a liquid
separate immiscible liquids
To remove water from the product
What functional group would be tested for when using silver nitrate, ethanol and water?
unsaturated hydrocarbon
haloalkane
carbonyl
alcohol
If Tollen's reagent is added to a compound and it forms a silver mirror, what functional group is present?
Ketone
aldehyde
carboxylic acid
alcohol
Select all possible ways a haloalkane can be prepared:
Radical substitution of an alkane
dehydration of an alcohol
halogenation of an alkene
substitution of an alcohol
Select all that can be made directly from a primary alcohol:
Aldehyde
Ketone
Carboxylic acid
Haloalkane
What functional group is present in this IR spectrum?
Alcohol
Ester
Carboxylic acid
Ketone
Select all correct wave numbers that would be present in 2-hydroxypentanal
3200–3550 cm–1
2500–3300 cm–1
1640–1750 cm–1
This show the mass spectra of pentane. What is the m/z value?
(a)
Identify the correct fragment ion shown in a mass spectra that would give a m/z value of 57:
C4H8+
C4H9+
C4H10+
This show a mass spectra for pent-1-ene. Identify what the fragment would be with m/z 27?
H2C=CH2+
HC=CH2+
H2C=CH+
H3C-CH+
Pentane and 2-Methylbutane are structural isomers. Looking at the fragmentation pattern on the mass spectra, what isomer is this most likely to be?
Pentane
2-Methylbutane
