MEDIUM
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How many pi electrons does the given molecule have?
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Important Questions on Organic Chemistry- Some Basic Principles and Techniques
HARD
Increasing order of stability of the resonance structure is:
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Which one among the following resonating structures is not correct?
EASY
Draw the resonating structures of Aniline.
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Among the given species the Resonance stabilised carbocations are:
EASY
Resonance effect is not observed in
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Which of the following molecules is least resonance stabilized?
EASY
Draw the resonating structures of Urea.
EASY
The chlorine atom of the following compound
that reacts most readily with to give a precipitate is
EASY
The most acidic proton and the strongest nucleophilic nitrogen in the following compound
respectively, are
EASY
The correct order of stability for the following alkoxides is:
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In which of the following molecules, all atoms are coplanar?
EASY
The most unlikely representation of resonance structures of p-nitrophenoxide ion is
HARD
Draw the resonance structures for the following compounds. Show the electron shift using curved-arrow notation.
HARD
Draw the resonance structures for the following compound. Show the electron shift using curved-arrow notation.
HARD
Draw the resonance structures for the following compound. Show the electron shift using curved-arrow notation.
EASY
A compound that easily undergoes bromination is-
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The hydrogenation of some compounds to cyclohexane generates the following amount of heat:(kcal/mol)
Cyclohexene -28 1,3-cyclohexadiene -54
1,4-cyclohexadiene -56 Benzene -49
Based on these data, the best estimate of the resonance energy of benzene
HARD
Draw the resonance structures for the following compound. Show the electron shift using curved-arrow notation.
HARD
Draw the resonance structures for the following compound. Show the electron shift using curved-arrow notation.
EASY
In pyrrole the electron density s maximum on
