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WorksheetsQ#03 DK024 PHASE 2-MCQ MCO
Total questions: 30
Worksheet time: 3hrs 30mins
Compounds which have the same molecular formula but different structural formula are known as …
indicators
polymers
isomers
isotopes
Which of following are saturated hydrocarbons?
CH3CH2CH3
CH3CH=CH2
CH4
C(CH3)3
Generally alkanes are said to have been …
stable
highly reactive
reactive
unreactive
Maximum number of hydrogen atoms are present in molecules of alkanes hence they are
saturated hydrocarbons
unsaturated hydrocarbons
super unsaturated hydrocarbon
super saturated hydrocarbons
The condensed structural formula for 2,2-dimethylpentane is
CH3CH(CH3)CH2CH(CH3)CH3
CH3(CH2)3CH3
CH3C(CH3)2CH2CH2CH3
CH(CH3)2CH2CH2CH3
In combustion reactions alkanes react with …
oxygen
an acid
water
nitrogen
Molecular formula of 2-methyl-2-butene is …
C4H10
C4H8
C5H10
C5H12
Hydrocarbons which contain ring of three or more carbon atoms are called …
alkanes
aromatic compounds
cycloalkanes
isomer
The following compounds are alkanes EXCEPT …
C5H12
C6H12
C7H8
C7H14
Choose the FALSE statement about an alkane.
It undergoes electrophilic addition with chlorine gas.
It undergoes free radical substitution with chlorine gas.
It undergoes homolytic cleavage when reacts with chlorine gas.
It undergoes electrophilic substitution with an aqueous chlorine solution.
Which reagent would you choose to convert propanol to propanal?
PCC
K2Cr2O7
2,4-dinitrophenylhydrazine
KMnO4
Which of the following reaction is a free radical substitution?
Halogenation of benzene
Hydrogenation of alkanes
Halogenation of alkanes
Nitration benzene
Which of the following reaction is substitution reaction?
Halogenation alkane
Hydrogenation of alkenes
Halogenation of alkenes
Halogenation benzene
Which of the following alkane has the lowest boiling point?
2-methylpentane
2-methylbutane
2,2-dimethylpropane
2,2,3-trimethylbutane
Which of the following hydrocarbons can exist as cis-trans isomers?
2-methylpropene
2-butene
2-methyl-2-butene
1-butene
By using Saytzeff’s rule, the most stable alkene is
(C2H5)2C=CH2
C2H5CH=CHC2H5
(CH3)2C=C(CH3)2
CH2=CHC4H9
Choose the correct statement(s) about anti-Markovnikov addition of propene.
Platinum can be used to replace peroxides.
The product is 2-chloropropane when it reacts with HCl in presence of peroxide
The product is 2-bromopropane when it reacts with HBr in presence of peroxide
The product is Bromopropane when it reacts with HBr in presence of peroxide
Which of the following is the correct structure for
3-cyclopropyl-2-methylpentane?
Which of the following compound(s) could be formed by the dehydration of 2-butanol?
2-Butene
2-Methyl-1-propene
1,3-Butadiene
Butene
Oxidation of 2-pentanol produces compound X. X gives
positive reaction with Tollen’s reagent.
an orange precipitate with 2,4-dinitrophenylhydrazine.
a yellow precipitate with alkaline iodine.
negative reaction with Tollen’s reagent.
Arrange the following compounds in order of increasing boiling point.
II < III < IV < I
III < II < I < IV
I < IV < III < II
II < III < I < IV
1-Butanol can be differentiated from 2-butanol by using
Tollen’s reagent.
acidified potassium dichromate solution
phosphorus(V) chloride
alkaline iodine
Name the type of the reaction below.
CH2=CH2 + HBr → CH2(Br)CH3
Electrophilic addition
Nucleophilic addition
Nucleophilic substitution
Electrophilic substitution
Name the type of the reaction below.
C6H6 + Cl2 → C6H5(Cl)
Electrophilic addition
Nucleophilic addition
Nucleophilic substitution
Electrophilic substitution
Primary alcohol produce aldehyde in presence of solution of …
PCC
Tollen’s reagent.
2,4-dinitrophenylhydrazine
alkaline iodine
Test for presence of the carbonyl compound is called …
Baeyer's test
Iodine test
Lucas test
Brady's test
Test for presence of an alkene is called …
Baeyer's test
Iodine test
Lucas test
Brady's test
Identify the nucleophile in the equation below.
OH- + CH3Cl → CH3OH + Cl-
OH-
CH3Cl
CH3OH
Cl-
An aqueous solution of silver nitrate in excess ammonia is called …
Lucas reagent
Tollens reagent
Brady’s reagent
Baeyer's reagent
State the type of reaction below.
Cl- + CH3OH → CH3Cl + OH-
Electrophilic addition
Electrophilic substitution
Nucleophilic substitution
Nucleophilic addition
