WorksheetsOCR AS Organic chemistry
Total questions: 16
Worksheet time: 14mins
What is the name of this compound?
ethanol
ethanal
ethanone
methanal
What is the name of this compound?
propan-2-al
propanane
propanone
propanal
Which compound is a structural isomer of Z-but-2-ene?
butane
E-but-2-ene
cyclobutane
methylbut-2-ene
Which equation is a propagation step in the conversion of trichloromethane into tetrachloromethane by reaction with chlorine in the presence of ultraviolet light?
CHCl3 + Cl2 ⟶ CCl4 + HCl
●CCl3 + ●Cl ⟶ CCl4
CHCl3 + ●Cl ⟶ CCl4 + ●H
●CCl3 + Cl2 ⟶ CCl4 + ●Cl
How many structural isomers are there with the molecular formula C3H6BrCl?
4
5
6
7
An organic compound is found to contain 40.0% carbon, 6.7% hydrogen and 53.3% oxygen.Which of the following compounds could this be?
Ethanol
Ethanoic acid
Methanol
Methanoic acid
Which one of the following mechanisms is not involved in the reaction sequence below?
CH3CH3 → CH3CH2Cl → CH3CH2OH → CH2=CH2 → CH3CH2Br
electrophilic addition
electrophilic substitution
nucleophilic substitution
free-radical substitution
What is the correct systematic name for
2-bromo-3-methylpent-2-ene
2-bromo-3-ethylbut-2-ene
3-bromo-2-ethylbut-2-ene
4-bromo-3-methylpent-3-ene
Which pair of brackets contains the repeat unit for this polymer?
(...)
[...]
{...}
Which diagram gives the skeletal formula of
2-chloropentan-3-ol ?
A
B
C
D
Which reaction is not an electrophilic addition ?
A
B
C
D
Bromine reacts with ethene to form 1, 2-dibromoethane.
What is the correct description of the organic intermediate in this reaction ?
It has a negative charge
It is a free radical
It is a nucleophile
It is an electrophile
A reaction between chlorine and propane in UV light produces 2 isomeric monochloropropanes, C3H7Cl, as products. Which information about this reaction is correct ?
A
B
C
D
Which molecules would be present in the mixture produced by the photochemical chlorination of methane ?
1) Hydrogen
2) Hydrogen Chloride
3) dichloromethane
A
B
C
D
A
B
C
D
Which pair of homologous series have the same C:H ratio in their general formula
1) Aldehydes and Ketones
2) Carboxylic acids and esters
3) Alkenes and Ketones
A
B
C
D
