JEE Questions for Chemistry Organic Chemistry Some Basic Principles And Techniques Quiz 12 - MCQExams.com

Which of the following resonating structures of 1-methoxy-1, 3-butadiene is least stable?

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6396.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6397.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6398.png
Order of reactivity for the following compounds, is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6399.png
  • IV < II < III < I
  • II < IV < III < I
  • IV < II < I < III
  • II < IV < I < III
Which is the least stable carbocation?
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6400.png
  • I
  • II
  • III
  • IV
The order of the stability of the following carbocations
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6402.png
  • III > II > I
  • I > III > II
  • I > II > III
  • III > I > II

Chemistry-Organic Chemistry Some Basic Principles and Techniques-6403.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6404.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6405.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6406.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6407.png

Chemistry-Organic Chemistry Some Basic Principles and Techniques-6409.png
  • I>II>III>IV
  • IV>II>I>III
  • II>I>IV>III
  • I>IV>III>II
Which one of the nitrogen atoms in
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6411.png
  • Only III
  • Only I
  • Only II
  • All three N - atoms
Most stable carbonium ion is

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6413.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6414.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6415.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6416.png
In the following carbocation, H/CH3 that is most likely to migrate to the positively charged carbon is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6417.png
  • CH3 at C-4
  • H at C-4
  • CH3 at C-2
  • H at C-2
Arrange the carbanions, in order of their decreasing stability.
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6419.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6420.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6421.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6422.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6423.png
Relative stabilities of the following carbocations will be in the order
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6425.png
  • C > B > A
  • B > A > C
  • B > C > A
  • C > A > B
The compound which gives the most stable carbonium ion on dehydration is
  • CH3 CH (CHCH2 OH
  • (CH3)3 COH
  • CH2 = CH CH2 CH2 OH
  • CH3 CHOH CH2 — CH3
Consider the following carbocations,
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6427.png
  • II < I < III < IV
  • II < III < I < IV
  • III < I < II < IV
  • IV < III < I < II
The increasing order of stability of the following free radicals is

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6430.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6431.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6432.png
The compound without a chiral carbon atom is

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6435.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6436.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6437.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6438.png
Which of the given statement(s) about N, 0, P and Q with respect to M is/are correct?
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6440.png
  • M and N are non - mirror image stereoisomerism
  • M and O are identical
  • M and N are enantiomers
  • M and Q are identical
The structure of cis-bis (propenyl) ethene is

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6442.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6443.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6444.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6445.png
Which compound shows geometrical isomerism among the following?

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6447.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6448.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6449.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6450.png
The most contributing tautomeric enol form of MeCOCH2 CO2 Et is
  • CH2 = (OH)CCCCH2 CO2 Et
  • MeC(OH) = CHCO2 Et
  • MeCOCH = C(OH)OEt
  • CH2 = C(OH)CH = C(OH)OEt
Which of the following is a chiral molecule?

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6453.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6454.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6455.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6456.png
Products of the reaction are
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6458.png
  • meso-compounds
  • racemic mixtures
  • mixtures of racemic and meso-compounds
  • None of the above
Amongst the given options, the compound (s) in which all the atoms are in one plane in all the possible conformations (if any), is (are)

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6460.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6461.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6462.png
The maximum number of isomers (including stereoisomers) that are possible on monochlorination of the following coumpound, is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6463.png
  • 2
  • 4
  • 6
  • 8
Which one of the following will show optical isomerism?

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6465.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6466.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6467.png
Which of the following is the correct order of priority of groups in D -glyceraldehyde?
  • OH (1), CHO (2), CH2OH (and H (4)
  • OH (1), CH2OH (2), CHO (and H (4)
  • CH2OH (1), CHO (2), OH (and H (4)
  • CHO (1), OH (2), CH2OH (and H (4)
The following compound differ in
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6471.png
  • configuration
  • conformation
  • structure
  • chirality
What is the structural formula of fumaric acid?

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6474.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6475.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6476.png
The absolute configuration
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6478.png
  • S, S
  • R, R
  • R, S
  • S, R
Which of the following compound (s) has Z-configuration?
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6480.png
  • Only I
  • Only II
  • Only III
  • I and III
According to Cahn-Ingold-Prelog sequence rules, the correct order of priority for the given groups is
  • —OH > —COOH > —CHO > —CH2 OH
  • —COOH > —CH2 OH > —OH > —CHO
  • —COOH > —CHO > —CH2 OH > —OH
  • —OH > —CH2OH > —CHO > —COOH
Acyclic stereoisomer having the molecular formula C4 H7 Cl are classified and tabulated. Find out the correct set of numbers.
  • Geometrical = 6, Optical = 2
  • Geometrical = 4, Optical = 2
  • Geometrical = 6, Optical = 0
  • Geometrical = 4, Optical = 0
  • Geometrical = 5, Optical = 2
Which of the following does not exhibit tautomerism ?

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6483.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6484.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6485.png
The absolute configuration of the following
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6487.png
  • 2S, 3R
  • 2S, 3S
  • 2R, 3S
  • 2R, 3R
Which of the following molecules is expected to rotate the plane of plane polarised light?

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6490.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6491.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6492.png
Tautomerism is exhibited by

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6495.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6496.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6497.png
Among the following four structures Ito IV
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6499.png
  • all four are chiral compounds
  • I and II are chiral compounds
  • only III is a chiral compound
  • II and IV are chiral compounds
Amongst the following compounds, the optically active alkane having lowest molecular mass is

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6501.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6502.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6503.png
In this reaction,
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6505.png
  • 50% D + 50% L-isomer
  • 20% D + 80% L-isomer
  • D-isomer
  • L-isomer
Isomers of propionic acid are
  • HCOOC2 H5 and CH3COOCH3
  • HCO0C2 H5 and C3 H7COOH
  • CH3COOCH3 and C3H7OH
  • C3H7OH and CH3COCH3
Metamers of ethyl propionate are
  • C4 H9 COOH and HCOOC4H9
  • C4H9COOH and CH3COOC3H7
  • CH3 COOCH3 and CH3 COOC3
  • CH3C00C3 H7and C3 H7COOCH3
The compound, whose stereo-chemical formula is written below, exhibits x geometrical isomers and y optical isomers
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6508.png
  • 4 and 4
  • 2 and 2
  • 2 and 4
  • 4 and 2

Chemistry-Organic Chemistry Some Basic Principles and Techniques-6509.png
  • Position
  • Functional
  • Metamerism
  • Dextro-isomerism

Chemistry-Organic Chemistry Some Basic Principles and Techniques-6511.png
  • geometrical isomerism
  • tautomerism
  • optical isomerism
  • geometrical and optical isomerism
The name of the compound
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6512.png
  • (2Z, 4Z)-2, 4-hexadiene
  • (2Z, 4E)-2, 4-hexadiene
  • (2E, 4Z)-2, 4-hexadiene
  • (4E, 4Z)-2, 4-hexadiene
  • (2E, 4E)-2, 4-hexadiene
Which of the following Fischer's projection formula is identical to D-glyceraldehyde?

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6515.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6516.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6517.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6518.png
Which of the following is a pair of functional isomers ?
  • CH3 COCH3 , CH3 CHO
  • C2 H5 CO2 H, CH3 CO2 CH3
  • C2 H5 CO2 H, CH3 CO2 C2 H5
  • CH3CO2 H, CH3CHO
Which of the following will be chiral ?
  • CH3 CHCl2
  • CH3 CHBrCI
  • CD2 Cl2
  • CH2ClBr
Maximum enol content is in

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  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6521.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6522.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6523.png
Identify the binary mixture(s) that can be separated into individual compounds, by differential extraction as shown in the given scheme.
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6524.png
  • C6H5 OH and C6H5 , COOH
  • C6H5 COOH and C6H5 CH2 OH
  • C6H5 CH2OH and C6H5 OH
  • C6H5 OH and C6H5 CH2COOH
Match the following columns.
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6526.png
  • A=5, B=4, C=1, D=2, E=3
  • A=4, B=5, C=1, D=6, E=2
  • A=6, B=4, C=1, D=3, E=2
  • A=5, B=4, C=6, D=2, E=3
  • A=4, B=6, C=2, D=3, E=5
0:0:1


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