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Haloalkanes And Haloarenes
Quiz 1
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Q.1
Ethyl bromide on treatment with silver cyanide give :
Ethyl acetate
Ethyl iso cyanide
Ethyl cyanide
Ethyl amine
Q.2
Haloalkanes are best obtained by
Swartz reaction
Darzzen's process
Finkelstein process
None of these
Q.3
CH3CHCl2 and CH2Cl CH2Cl are examples of :
Functional isomers
Metamers
Chain isomers
Position isomers
Q.4
The number of structural isomers of formula C4H9Br is...
2
3
4
5
Q.5
Alkaline hydrolysis of (CH3)3CBr involves two steps as follows.(CH3)3CBr → (CH3)3C+ + Br- slow(CH3)3C+ + OH- → (CH3)3COH fastWhich of the following shows the rate equation for the reaction scheme?
Rate = k[OH-]
Rate = k[(CH3)3CBr]
Rate = k[(CH3)3CBr]2
Rate = k[(CH3)3CBr][OH-]
Q.6
The reaction:CH3Br + AgF → CH+ AgBr is called
Swarts reaction
Finkelstein reaction
Gattermann reaction
Perkin reaction
Q.7
which among MeX, RCH2X , R2CHX and R3CX is most reactive towards SN2 reaction
MeX
RCH2X
R2CHX
R3CX
Q.8
The reaction:R – Cl + KI → RI + KCl (in presence of acetone)Is known as
Hunsdieker reaction
Finkelstein reaction
Ulmann reaction
Wurtz reaction
Q.9
Assertion: Electron withdrawing groups in aryl halides increases the reactivity towards nucleophilic substitution.Reason:4-Dinitrochlorobenzene is more reactive than chlorobenzene.
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.10
Assertion (A): Phosphorus chlorides (tri and penta) are preferred over thionyl chloride for the preparation of alkyl chlorides from alcohols.Reason (R): Phosphorus chlorides give pure alkyl halides.
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 and Reason both are wrong statements
Q.11
Which of the following is a chiral molecule?
CH2BrI
CH3CBr2Cl
(CH3)2CHCl
CH3CHBrCH2CH3
Q.12
Which of the following will have maximum boiling point?
C3H7Br
C3H7F
C3H7Cl
C3H7I
Q.13
Halogen compounds have--------- boiling point than the parent hydrocarbons
Higher
Lower
Same
Unpredictable
Q.14
Complete the following reaction 3R-OH + PCl→\rightarrow→ 3 R-Cl + XThe X is
H2PO2
H3PO4
H3PO3
H3PO5
Q.15
Complete the following reaction R-OH + X →\rightarrow→ RCl + SO2 + HCl
SO2
SOCl3
SOCl2
SOCl
Q.16
Complete the following reaction R-OH + PCl→\rightarrow→ RCl + X + HCl X is
PCl3
PCl5
POCl3
POBr3
Q.17
In a molecule of tertiary haloalkanes, carbon atom is bonded to
3 carbon atoms
2 carbon atoms
4 carbon atoms
1 carbon atom
Q.18
In the following sequence of reactionsCH3CH2CH2Br+ (alc) KOH →(A) + HBr → (B) + (aq) KOH → (C).The product (C) is
propan-2-ol
propan-1-ol
propyne
propene
Q.19
most strong C-X bond (important for rate substitution). between C-F C-Cl C-Br C-I
C-F
C-Cl
C-Br
C-I
Q.20
Arrange the strength of van der Waals forces with same number of C atom (increasing):
RF < RCl < RBr < RI
RF > RCl > RBr > RI
0 h : 0 m : 1 s
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