Haloalkanes and Haloarenes  MCQs

MCQs of Haloalkanes and Haloarenes

Showing 91 to 100 out of 112 Questions
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91.
Select the correct order of some important group for absolute configuration of Chiral compound.
(a) -SO3H > -CH2OH > -COOR > -OCOR
(b) -SO3H > -OCOR > -COOR > -CH2OH
(c) -CH2OH > -COOR > -OCOR > -SO3H
(d) -SO3H > -COOR > -OCOR > -CH2OH
Answer:

Option (b)

92.
What are 'X' and 'Y' in the following reaction ?

3CCl4 + 2X →High PressureY  3CCl2F2 + 2SbCl3

(a) X = SbF3, Y = SbF5
(b) X = SbCl3, Y = SbCl5
(c) X = SbF3, Y = SbCl5
(d) X = SbCl5, Y = SbF3
Answer:

Option (c)

93.
The correct priority order for the R and S nomenclature of 3-bromo-2-methyl pentane molecule is _____ .
(a) -Br, -C2H5, -CH(CH3)2, H
(b) -Br, -(CH3)2CH, -C2H5, H
(c) -(CH3)2CH, -C2H5, -Br, H
(d) -H, -C2H5, -CH(CH3)2, -Br
Answer:

Option (b)

94.
What is the correct relation for SN2 reaction ?
(a) rate = K [S] [Nu]
(b) rate = K [S]2
(c) rate = K [Nu]2
(d) rate = K [S]2 [Nu]2
Answer:

Option (a)

95.
Toluene reacts with halogen in the presence of iron (III) chloride giving ortho and para halo compounds. What is this reaction called ?
(a) Electrophilic elimination reaction
(b) Electrophilic substitution reaction
(c) Free radical addition reaction
(d) Nucleophilic substitution reaction
Answer:

Option (b)

96.
Give the name of the following reaction.

CH3CH2Cl + NaI →Acetone CH3CH2I +NaCl

(a) Swartz reaction
(b) Finklstein reaction
(c) Grignard reaction
(d) Wurtz reaction
Answer:

Option (b)

97.
Which is the correct priority order ?
(a) -COOH, -CONH2, -CHO, -COCH3
(b) -COOH, -CONH2, -COCH3, -CHO
(c) -COOH, -COCH3, -CONH2, -CHO
(d) -COCH3, -CONH2, -COOH, -CHO
Answer:

Option (b)

98.
What amongst the following is followed in a reaction of C6H5CH2Cl with NaOH(aq) ?
(a) SN1 mechanism
(b) SN2 mechanism
(c) Saytzeff rule
(d) Either (A) or (B) depending on the temperature of reaction
Answer:

Option (b)

99.
State the correct stability order of carbocation.
(a) C⊕H3 > 1°C⊕ > 2°C⊕ > 3°C⊕
(b) 3°C⊕ > 2°C⊕ > 1°C⊕ > C⊕H3
(c) 2°C⊕ > 1°C⊕ > C⊕H3 > 3°C⊕
(d) 1°C⊕ > C⊕H3 > 2°C⊕ > 3°C⊕
Answer:

Option (b)

100.
Which of the following reaction is an example of nulceophilic substitution reaction ?
(a) 2RX + Na → R - R + 2NaX
(b) RX + H2 → RH + HX
(c) RX + Mg → RMg X
(d) RX + KOH → ROH + KX
Answer:

Option (d)

Showing 91 to 100 out of 112 Questions
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