Q.1
Is haloalkane polar or non polar?
  • polar molecules
  • non polar molecules
Q.2
Which of the following is an example of vic-dihalide?
  • Dichloromethane
  • 1,2-dichloroethane
  • Ethylidene chloride
  • Allyl chloride
Q.3
Toluene reacts with a halogen in the presence of iron (III) chloride giving ortho and para halo compounds. The reaction is
  • Electrophilic elimination reaction
  • Electrophilic substitution reaction
  • Free radical addition reaction
  • Nucleophilic substitution reaction
Q.4
The position of –Br in the compound in CH3CH=CHC(Br)(CH3)2 can be classified as ____________.
  • Allyl
  • Aryl
  • Vinyl
  • Secondary
Q.5
The synthesis of alkyl fluoride is best accomplished by:
  • Finkelstein reaction
  • Swarts reaction
  • Free radical fluorination
  • Sandmeyer’s reaction
Q.6
Assertion: Halogen acids react with alcohols to form haloalkanes.Reason: Order of reactivity of halogen acids HCl>HBr>HI
  • Both assertion and reason are true and the reason is the correct explanation of the assertion.
  • Both assertion and reason are true but reason is not the correct explanation of the assertion.
  • Assertion is true but reason is false.
  • Assertion is false but reason is true.
Q.7
Assertion (A): It is difficult to replace chlorine by -OH in chlorobenzene in comparison to that in chloroethane.Reason (R): Chlorine-carbon (C – Cl) bond in chlorobenzene has a partial double bond character due to resonance.
  • Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • Assertion and Reason both are correct statements but Reason is not the correct explanation of Assertion.
  • Assertion is correct but Reason is wrong.
  • Assertion is wrong but Reason is correct.
Q.8
Assertion (A): Hydrolysis of (-)-2-bromooctane proceeds with inversion of configuration.Reason (R): This reaction proceeds through the formation of a carbocation.
  • Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • Assertion and Reason both are correct statements but Reason is not the correct explanation of Assertion.
  • Assertion is correct but Reason is wrong.
  • Assertion is wrong but Reason is correct.
Q.9
Ambident nucleophile is
  • CN
  • H2O
  • Cl
  • NH2
Q.10
Among dihaloarenes, the melting point is highest for
  • o-Isomer
  • p-Isomer
  • m-Isomer
  • Same for all
Q.11
The reactivity of halides in SN2 reaction is
  • 3o>2o>1o
  • 2o>1o>3o
  • 1o>3o>2o
  • 1o>2o>3o
Q.12
Haloalkane is a polar molecule that undergoes nucleophilic substitution through SN1 and SNArrange the following haloalkanes in order of increasing rate of unimolecular nucleophilic substitution reaction:I. 2-chloro-2-methylpropaneII. 2-chlorobutaneIII. 1-chlorobutane
  • I< II < III
  • I< III < II
  • III< I < II
  • III< II < I
Q.13
Compound C easily undergoes hydrolysis to form compound D, which forms 2-methylpropene when heated with concentrated sulphuric acid. Using the information above, proposed the structural formula for compound C
  • CH3CH2CH(Br)CH3
  • CH3CH2CH2CH(Br)CH3
  • CH3CH2(CH3)CH2Br
  • (CH3)2C(Br)CH3
Q.14
Which of the following compounds is the rate of alkaline hydrolysis that is independent of the concentration of the hydroxide ion?
  • CH3CH2CH2CH2Cl
  • CH3CH(Br)CH3
  • C6H5CH2CH2I
  • (CH3)3CBr
Q.15
Arrange compound below according to decreasing boiling point;Pentane, 2-chloropropane, 1-butanol, 2-methylbutane
  • 2-chloropropane, 1-butanol, 2-methylbutane, Pentane
  • 1-butanol, 2-chloropropane, Pentane, 2-methylbutane
  • 2-chloropropane, 2-methylbutane, Pentane, 1-butanol
  • 2-methylbutane, Pentane, 2-chloropropane, 1-butanol
Q.16
Why does the reaction C2H+ OH- → C2H5OH + X- occur faster if X is iodine instead of Bromine?
  • the I- ion is a stronger nucleophile than the Br- ion.
  • the I- ion is less hydrated in water than the Br- ion
  • C-Br bond is more polar than the C-I bond
  • the C-Br bond is stronger than the C-I bond
Q.17
SN2 reaction involves the formation of __________ intermediate
  • Carbocation
  • Carboanion
  • Transition state
  • None of these
Q.18
Complete the following reaction R-X + KNO2 → A + KXA is
  • RNO2
  • RONO
  • RNO
  • RNO3
Q.19
The synthesis of alkyl fluoride is best accomplished by: (JEEC)
  • Finkelstein reaction
  • Swarts reaction
  • Free radical fluorination
  • Sandmeyer’s reaction
Q.20
The most reactive halogen in halogenations of alkanes under sunlight
  • F
  • Cl
  • Br
  • I
0 h : 0 m : 1 s