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WorksheetsIB Topic 10 Organic Chemistry
Total questions: 20
Worksheet time: 39mins
How many alcohols have the general formula C4H10O?
3
4
5
6
What is the general formula of the alkyne series?
CnHn
CnH2n-2
CnH2n
CnH2n+2
Which compound can both be esterified and turn acidified potassium dichromate(VI) solution green?
(CH3)3COH
CH3CH2CO2H
(CH3)2CHOH
CH3CH2COCH3
What is the mechanism of the reaction between ethane and chlorine in sunlight?
Free radical substitution
Free radical addition
Electrophilic substitution
Electrophilic addition
Which is propyl propanoate?
CH3CH2CH2OOCCH2CH3
CH3CH2CH2COOCH2CH3
CH3CH2CH2COCH2CH3
CH3CH2CH2OCH2CH2CH3
Which are consecutive members of a homologous series?
CH4, CH3Cl, CH2Cl2
HCOOH, CH3COOH, C2H5COOH
C2H2, C2H4, C2H6
HCOOH, HCHO, CH3OH
Which could form an addition polymer?
H2NCH2CHCHCH2NH2
H2N(CH2)6CO2H
HO(CH2)2CO2H
H2N(CH2)6NH2
A compound decolorizes bromine water in the dark. Which statement is correct?
It contains C=C and is an alkene.
It contains C–C and is an alkene.
It contains C=C and is an alkane.
It contains C–C and is an alkane.
Which compound could be X in the two-stage reaction pathway?
C2H4 → X → C2H5OH
C2H6
C2H3OH
C2H5Br
C2H4Cl2
Applying IUPAC rules, what is the name of the compound?
1-ethyl-1,3-dimethylbut-2-ene
2-ethyl-4-methylpent-3-ene
2-methyl-4-ethylpent-3-ene
2,4-dimethylhex-2-ene
Which statements about the chlorine free radical are correct?
I. It has 18 electrons.
II. It is an uncharged species.
III. It is formed by homolytic fission.
I and II only
I and III only
II and III only
I, II and III
Which statement is correct about the polymerization of ethene to poly(ethene)?
The polymer is an alkene.
The monomer ethene and the repeating unit have the same empirical formula.
The monomer ethene is less reactive than the polymer.
The polymer contains C−C single and C=C double bonds.
Applying IUPAC rules, what is the name of CH3CH(CH3)CH2COOH?
2,3-dimethylpropanoic acid
Pentanoic acid
3-methylbutanoic acid
2-methylbutanoic acid
Which of the following functional groups are present in aspirin?
Hydroxyl (alcohol) and ester
Carboxyl (carboxylic acid) and ester
Carboxyl (carboxylic acid) and carbonyl (ketone)
Hydroxyl (alcohol) and carbonyl (ketone)
Which statements are correct for the reaction of ethene with bromine in the absence of ultraviolet light?
I. It is an addition reaction.
II. The organic product is colourless.
III. The organic product is saturated.
I and II only
I and III only
II and III only
I, II and III
Which combination best describes the substitution reaction between bromoethane and dilute aqueous sodium hydroxide?
CH3CH2Br + OH− → CH3CH2OH + Br–
A
B
C
D
Which pair of compounds can be distinguished by reacting them with dilute bromine water in the dark?
CH3CH2COOH and CH3CH2CHO
CH3CH2CHCHCH3 and CH3CH2CH2CH2CH3
CH3CH2CH(CH3)2 and CH3CH2CH2CH2CH3
CH3CH2CH2CHBrCH3 and CH3CH2CHBrCH2CH3
Which is not a possible product when propane, C3H8, reacts with chlorine in sunlight?
H2
C6H14
C3H7Cl
Cl2
Which compound is most soluble in water?
CH3CH2CHO
CH3CH2CH2CHO
CH3CH2CO2H
CH3CH2CH2CO2H
Which are features of successive members of a homologous series?
I. Similar chemical properties
II. Same general formula
III. Differ by −CH2−
I and II only
I and III only
II and III only
I, II and III
