Hydrocarbons IIT JEE

Hello, I am applying for the IIT JEE exam and I want the questions of the hydrocarbons section of chemistry.

Hello, here I am providing you the questions of the IIT JEE exam of hydrocarbons section as under:

Question 1
The hydrocarbon which can react with sodium in liquid ammonia is [AIEEE 2008]
A
CH3CH2CH2C≡CCH2CH2CH3
B
CH3CH2C≡CH
C
CH3CH=CHCH3
D
CH3CH2C≡CCH2CH3

Question 2
The treatment of CH3MgX with CH3C ≡ C−H produces [AIEEE 2008]
A
CH3−CH = CH2
B
CH3C ≡ C−CH3
C
D
CH4

Question 3
Benzene reacts with chlorine in sunlight to give a final product [Karnataka CET 2007]
A
C6H5Cl
B
C6Cl6
C
C6H6Cl6
D
CCl4

Question 4
The general formula of a cycloalkane is [Karnataka CET 2007]
A
CnH2n+2
B
CnH2n–2
C
CnH2n
D
CnHn

Question 5
Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. Compound F is [IIT JEE 2007]
A
Option (A)
B
Option (B)
C
Option (C)
D
Option (D)

Question 6
The reagent(s) for the following conversion, is/are [IIT JEE 2007]
A
alcoholic KOH
B
alcoholic KOH followed by NaNH2
C
aqueous KOH followed by NaNH2
D
Zn/CH3OH

Question 7
Presence of a nitro group in a benzene ring [AIEEE 2007]
A
activates the ring towards electrophilic substitution
B
renders the ring basic
C
deactivates the ring towards nucleophilic substitution
D
deactivates the ring towards electrophilic substitution

Question 8
The compound formed as a result of oxidation of ethyl benzene by KMnO4 is [AIEEE 2007]
A
benzophenone
B
acetophenone
C
benzoic acid
D
benzyl alcohol

Question 9
Which of the following reactions will yield 2, 2-dibromopropane? [AIEEE 2007]
A
CH3 − C ≡ CH + 2HBr →
B
CH3 CH ≡ CHBr + HBr→
C
CH ≡ CH + 2HBr→
D
CH3 − CH = CH2 + HBr →

Question 10
HBr reacts with CH2 = CH – OCH3 under anhydrous conditions at room temperature to give [AIEEE 2006]
A
CH3CHO and CH3Br
B
BrCH2CHO and CH3OH
C
BrCH2 – CH2 – OCH3
D
H3C – CHBr – OCH3

Question 11
Phenyl magnesium bromide reacts with methanol to give [AIEEE 2006]
A
a mixture of anisole and Mg(OH)Br
B
a mixture of benzene and Mg(OMe)Br
C
a mixture of toluene and Mg(OH)Br
D
a mixture of phenol and Mg(Me)Br

Question 12
A gas decolourised by KMnO4 solution but gives no precipitate with ammoniacal cuprous chloride is [Karnataka CET 2005]
A
Ethane
B
Methane
C
Ethene
D
Acetylene

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Answered By StudyChaCha Member