Monday, 28 November 2016
Tuesday, 22 November 2016
MCQ Multiple Choice Question on Polycyclic Aromatic Hydrocarbon
Polycyclic Aromatic Hydrocarbon
- Which is the most probable main product of the following reaction ?
Answer:- b.
Electrophilic substitution on naphthalene occurs preferentially at C1/ α carbon.
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2. Which is the most probable main product of the following electrophilic substitution reaction of napphthalene?
Answer:-a.
The most reactive site of naphthalene is C1 and remember that amino NH2 group is an activating, o,p-directing group in aromatic electrophilic substitution reaction; consequently, nitration occurs predominantly at C4 in this reaction.
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3. Which is the most probable main product of the following reaction?
Electrophilic substitution on anthracene occurs preferentially at C 9 carbon.
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4. Which is impossible as a resonance contributor of anthracene.
Answer:- b.
In this structure two carbon atoms with five valencies.
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5. Which of following is the most important resonance contributing structure of the
naphthalenium ion intermediate in an electrophilic substitution reaction
of naphthalene?
Answer:- a.
In this one of the benzene ring having benzenoid i.e sexted state, rest of structure not.
Thank you.
Conformation Isomerism and Conformation of n-butane
Point to be covered
- Conformation Isomerism
- Conformation of n-butane
- Projection of conformers
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