Q.1
Identify the incorrect statement regarding aromaticity.
  • does not follow Huckel’s rule
  • Cyclic delocalization takes place
  • p-orbitals must be planar and overlap
  • It is the extra stability possessed by a molecule
Q.2
The maximum number of stereoisomers possible for 4-phenyl but-3-en-2ol is
  • 1
  • 2
  • 3
  • 4
Q.3
Benzene is more stable than alkenes due to
  • Electron losing tendency of ring
  • Resonance of the ring
  • Electron gaining tendency of ring
  • Electromeric effect
Q.4
Choose the correct statement(s) for aromatic compounds
  • They are cyclic and planer
  • They have \pi π delocalized electrons
  • They have conjugated double bonds
  • All of above
Q.5
An asymmetric carbon is the same as a...
  • achiral carbon
  • chiral carbon
  • prochiral carbon
  • axial carbon
Q.6
Which of the following alkanes would you expect to have the lowest melting point?
  • octane
  • propane
  • pentane
  • butane
Q.7
Which of the substituents are ranked as the lowest priority based on Cahn-Ingold-Prelog ranking rules?
  • -C(O)H
  • -CH2OH
  • -CH2-O-C(O)CH3
Q.8
Which of the substituents are ranked as the lowest based Cahn-Ingold-Prelog ranking rules?
  • -NH2
  • -C≡N
  • -NO2
Q.9
Which of the substituents are ranked as the highest priority based on Cahn-Ingold-Prelog ranking rules?
  • -OH
  • -CH2CH3
  • -H2PO4
Q.10
A racemic mixture is optically active.
  • yes
  • no
Q.11
Optical isomers are of how many types
  • 2
  • 3
  • 4
  • 5
Q.12
Which number of pi electrons satisfies Huckel's rule. Check all that apply
  • 3
  • 4
  • 6
  • 8
Q.13
Can a linear molecule have aromaticity.
  • Yes
  • No
  • None of the above
Q.14
Number of Pi bonds in benzene are
  • 4
  • 3
  • 2
  • 1
Q.15
Aromaticity is given by
  • Kekule's rule
  • Huckel's rule
  • 4n+2 π electrons rule
  • Both b and c
Q.16
ANTHRACENE HAS ___________ ANNULAR CARBON ATOMS.
  • ONE
  • TWO
  • FOUR
  • SIX
Q.17
NAPHTHALENE CONSIST OF __________ ANULAR POSITIONS.
  • ONE
  • TWO
  • THREE
  • NONE OF THE ABOVE
Q.18
THE ENERGY DIFFERENCE BETWEEN BOAT AND CHAIE CONFORMATION OF CYCLOHEXANE IS____________ KCAL/MOLE
  • 11.2
  • 7.1
  • 1.7
  • 5.2
Q.19
CYCLOPROPANE HAS MAXIMUM ___________ STRAIN
  • ANGLE
  • VAN DER WAALS
  • PITZER
  • TRANSANNULAR
Q.20
WHICH ONE IS THE MOST STABLE FORM OF CYCLOHEXANE?
  • CHAIR
  • BOAT
  • TWIST BOAT
  • HALF CHAIR
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