JEE Questions for Chemistry Organic Chemistry Some Basic Principles And Techniques Quiz 7 - MCQExams.com

The IUPAC name of
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6064.png
  • 4–propoxy pentane
  • pentyl–propyl ether
  • 2–propoxy pentane
  • 2–pentoxy propane
The IUPAC name of
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6066.png
  • pent-3-en-1-yne
  • pent-3-en-4-yne
  • pent-2-en-4-yne
  • pent-2-en-3-yne
Give the IUPAC name of the following compound.
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6068.png
  • 1, 1, 3-trimethylcyclohex-2-ene
  • 1, 3, 3-trimethylcyclohex-1-ene
  • 1, 1, 5-trimethylcyclohex-5-ene
  • 2, 6, 6-trimethylcyclohex-1-ene

Chemistry-Organic Chemistry Some Basic Principles and Techniques-6070.png
  • 1, 1-diethyl-2, 2-dimethylpentane
  • 4, 4-dimethyl-5, 5-diethylpentane
  • 5, 5-diethyl-4, 4-dimethylpentane
  • 3-ethyl-4, 4-dimethylheptane
The IUPAC name of the compound,
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6072.png
  • 2-amino-3-hydroxypropanoic acid
  • 1-hydroxy-2-aminopropan-3-oic acid
  • 1-amino-2-hydroxypropanoic acid
  • 3-hydroxy-2-aminopropanoic acid
The IUPAC name of the following compound is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6074.png
  • bicyclo [2, 2, 0] octane
  • bicyclo [0, 2, 2] hexane
  • bicyclo [2, 1, 1] hexane
  • bicyclo [2, 2, 0] hexane

Chemistry-Organic Chemistry Some Basic Principles and Techniques-6076.png
  • 2-ethoxy pentane
  • 4-ethoxy pentane
  • pentylethyl ether
  • 2-pentoxy ethane
The IUPAC name of CH3 COCH(CH3) 2 is
  • isopropylmethyl ketone
  • 2-methyl-3-butanone
  • 4-methylisopropyl ketone
  • 3-methyl-2-butanone
The correct IUPAC name of
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6079.png
  • 1-cyclopropyl cyclobutane
  • 1, 1-dicyclobutane
  • 1-cyclobutane-l-cyclopropane
  • None of the above
The IUPAC name of
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6081.png
  • 1-cyclohexa-2, 4-dienylethanone
  • 3-cyclohexa-2, 4-dienylethanone
  • 1-cyclohexa-3, 5-dienylethanone
  • 3-cyclohexa-3, 5-dienylethanone

Chemistry-Organic Chemistry Some Basic Principles and Techniques-6083.png
  • 5-methylhex-3-en-2-ol
  • 2-methylhex-3-en-5-ol
  • 2-hydroxy-5-methyl-3-hexene
  • 5-hydroxy-2-methyl-3-hexene
The IUPAC name of C6 H5 COCl is
  • benzoyl chloride
  • benzene chloro ketone
  • benzene carbonyl chloride
  • chloro phenyl ketone
The IUPAC name of the compound shown below is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6086.png
  • 2-bromo-6-chlorocyclohex-1-ene
  • 6-bromo-2-chlorocyclohexene
  • 3 -bromo-1-chlorocyclohexene
  • 1-bromo-3-chlorocyclohexene
IUPAC name of the following compound is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6088.png
  • 3, 5-dimethylcyclohexene
  • 3, 5 -dimethyl- 1 -cyclohexene
  • 1, 5-dimethyl-5-cyclohexene
  • 1, 3-dimethyl-5-cyclohexene
The IUPAC name of the compound
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6090.png
  • 3, 3-dimethyl-1-hydroxy cyclohexane
  • 1,1-dimethyl-3-hydroxy cyclohexane
  • 3, 3-dimethyl-1-cyclohexanol
  • 1, 1-dimethyl-3-cyclohexanol
IUPAC name of CH3 CH2 C(Br) = CH— Cl is
  • 2-bromo-1-chloro butene-1
  • 1-chloro-2-bromo butene-1
  • 3-chloro-2-bromo butene-2
  • None of the above
The IUPAC name of
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6093.png
  • 2-methayl-3-butanone
  • 3-methyl-butan-2-one
  • 3-methyl butanone
  • None of the above
The IUPAC name of the compound CH3 CONHBr is
  • 1-bromoacetamide
  • ethanoylbromide
  • N-bromoethanamide
  • None of the above
Bicyclo (1, 1,butane is

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6096.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6097.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6098.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6099.png
Which of the following is a primary halide?
  • Isopropyl iodide
  • Secondary butyl iodide
  • Tertiary butyl bromide
  • Neo hexyl chloride
The IUPAC name of CH3— CH2 — CHO is
  • propanal-1
  • 2-methylbutanal
  • butanal-1
  • pentanal-1
The IUPAC name of (CH3)3C— CH=CH2 is
  • 1, 1, 1-trimethy1-2-propene
  • 3, 3, 3-trimethyl-2-propene
  • 2, 2-dimethyl-3-butene
  • 3, 3-dimethyl- 1 -butene
The correct order of increasing basicity of the given conjugate bases (R =CH3) is

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6103.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6104.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6105.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6106.png
The correct acidity order of the following is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6108.png
  • III > IV > II > I
  • IV > III > I > II
  • III > II > I > IV
  • II > III > IV >I
Hyperconjugation involves overlap which of the following orbitals ?

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6109.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6110.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6111.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6112.png
Which of the following species does not exert a resonance effect?
  • C6 H5 NH2
  • C6 H5 NH3
  • C6 H5OH
  • C6H5Cl
If two compounds have the same empirical formula but different molecular formulae, they must have
  • different percentage composition
  • different molecular weights
  • same viscosity
  • same vapour density
Among the following, the strongest nucleophilic is
  • C2H5 SH
  • CH3 COO-
  • CH3NH2

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6115.png
Consider thiol anion(RS⊖) and alkoxy anion (RO⊖) . Which of the following statements is correct?
  • RS⊖ is less basic and less nucleophilic than RO⊖
  • RS⊖ is less basic but more nucleophilic than RO⊖
  • RS⊖ is less basic and more nucleophilic than RO⊖
  • RS⊖ is more basic but less nucleophilic than RO⊖
Which one of the following carbanions is the least stable?

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6117.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6118.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6119.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6120.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6121.png
The correct combination of names for isomeric alcohols with molecular formula C4 H10 O is/are
  • t-butanol and 2-methyl propan -2-ol
  • n-butanol and butan-l-ol
  • iso-butylalcohol and 2-methylpropan- 1 -ol
  • All the above
The total number(s) of stable conformers with non-zero dipole moment for the following compound is/are
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6123.png
  • 3
  • 2
  • 4
  • 5
The following compound shows
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6125.png
  • geometrical isomerism
  • optical isomerism
  • geometrical and optical isomerism
  • structural isomerism
The well known compounds (+) -lactic acid and (—) -lactic acid, have the same molecular formula, C3H6O3. The correct relationship between them is
  • constitution isomerism
  • geometrical isomerism
  • identicalness
  • optical isomerism
Total number of isomers for the molecular formula C4H10O is
  • 3
  • 4
  • 6
  • 7
The total number of cyclic isomers possible for a hydrocarbon with the molecular formula C4H6 is
  • 1
  • 3
  • 5
  • 7
Angle strain in cyclopropane is
  • 24° 44'
  • 9°44'
  • 44'
  • — 5° 16'
Which among the following statements is correct with respect to the optical isomers?
  • Enantiomers are non-superimposable mirror images
  • Diastereomers are superimposable mirror images
  • Enantiomers are superimposable mirror image
  • Meso-forms have no plane of symmetry
The number of stereoisomers possible for a compound of the molecular formula
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6132.png
  • 3
  • 2
  • 4
  • 6
Which one of the following compound will show optical isomerism ?
  • (CH3 )2 — CH— CH2 — CH3
  • CH3 —CHOH— CH 3
  • CH3 — CHCl— CH2—CH3
  • CH3— CCl2 — CH2 — CH3
Which one of the following compounds is capable of existing in a meso form ?
  • 3, 3-dibromopentane
  • 4-bromo-2-pentanol
  • 3 -bromo-2-pentanol
  • 2, 3-dibromopentane
  • 2, 4-dibromopentane
The number of possible alkynes with molecular formula C5H8
  • 3
  • 4
  • 5
  • 6
Geometrical isomerism is shown by
  • —C— C—
  • C
  • —C ≡ C—
  • None of these
The number of meso-forms in the following compound is
Chemistry-Organic Chemistry Some Basic Principles and Techniques-6135.png
  • 3
  • 4
  • 8
  • 16
Geometrical isomerism is not shown by
  • 1, 1-dichloro-l-pentene
  • 1, 2-dichloro-l-pentene
  • 1, 3-dichloro-2-pentene
  • 1, 4-dichloro-2-pentene
On combustion, a gaseous hydrocarbon gives 0.72 g of water and 3.08 g of CO2. The empirical formula of the hydrocarbon is
  • C2H4
  • C3H4
  • C6H5
  • C7H8
29.5 mg of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absorbed in 20 mL of 0.1 M HC1 solution. The excess of the acid required 15 mL of 0.1 M NaOH solution for complete neutralisation. The percentage of nitrogen in the compound is
  • 59.0
  • 47.4
  • 23.7
  • 29.5
In Kjeldahl's method, ammonia from 5g of food neutralises 30 cm3 of 0.1 N acid. The percentage of nitrogen in the food is
  • 0.84
  • 8.4
  • 16.8
  • 1.68
0.25 g of an organic compound on Kjeldahl's analysis gave enough ammonia to just neutralise 10 cm3 of 0.5 M H2 SO4. The percentage of nitrogen in the compound is
  • 28
  • 56
  • 14
  • 112
  • 42
Which one of the following compounds gives white precipitate with AgNO3?

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6140.png
  • 2)
    Chemistry-Organic Chemistry Some Basic Principles and Techniques-6141.png

  • Chemistry-Organic Chemistry Some Basic Principles and Techniques-6142.png
  • None of these
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