
Concept explainers
(a)
Interpretation:
The resonance forms of pentadienyl radical to show the three carbon atoms that bear unpaired electron are to be stated.
Concept introduction:
The delocalization of lone pair or free electrons from one place to another is known as resonance. The stability of compound depends upon the number of resonating structures. More the resonating structures of compound more will its stability.
(b)
Interpretation:
The number of molecular orbitals in the molecular orbital picture of pentadienyl radical is to be stated.
Concept introduction:
Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.
(c)
Interpretation:
The number of nodes presents in lower-energy molecular orbital and highest-energy molecular orbital of pentadienyl radical is to be predicted.
Concept introduction:
Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.
(d)
Interpretation:
The molecular orbitals of pentadienyl system in order of increasing energy are to be drawn.
Concept introduction:
Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.
(e)
Interpretation:
The number of electrons present in each molecular orbital of pentadienyl radical is to be stated.
Concept introduction:
Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.
(f)
Interpretation:
An explanation to show that molecular orbital picture agrees with the resonance picture that shows the delocalization of unpaired electron on the three carbon atoms is to be stated.
Concept introduction:
Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.
(g)
Interpretation:
The carbon atoms that share the positive charge and the picture agree with the resonance structure or not are to be stated.
Concept introduction:
Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.
(h)
Interpretation:
The carbon atoms that share the positive charge and the picture agree with the resonance structure or not are to be stated.
Concept introduction:
Molecular orbital diagrams are used for determining the bonding in molecules using linear combination of atomic orbitals. The number of molecular orbitals formed is equal to the number of atomic orbitals that combine with each other.

Want to see the full answer?
Check out a sample textbook solution
Chapter 15 Solutions
Organic Chemistry (9th Edition)
- In the table below, the exact chemical structures for Methyl salicylate can be represented by the letter WRITE THE CORRECT LETTER ONLY DO NOT WRITE EXTRA WORDS OR PHRASES CI B) A) E) Cl racemic F) J) CI K) N) OH P) Pool of Reagents for Part B OH OH G) L) OH D) HO H) M) HO Q) R) CIarrow_forwardDraw the stepwise mechanism for the reactionsarrow_forwardPart I. a) Draw reaction mechanism for the transformations of benzophenone to benzopinacol to benzopinaco lone b) Pinacol (2,3-dimethyl, 1-3-butanediol) on treatment w/ acid gives a mixture of pina colone (3,3-dimethyl-2-butanone) and 2, 3-dimethyl - 1,3-butadiene. Give reasonable mechanism the formation of the products Forarrow_forward
- 3. The explosive decomposition of 2 mole of TNT (2,4,6-trinitrotoluene) is shown below: Assume the C(s) is soot-basically atomic carbon (although it isn't actually atomic carbon in real life). 2 CH3 H NO2 NO2 3N2 (g)+7CO (g) + 5H₂O (g) + 7C (s) H a. Use bond dissociation energies to calculate how much AU is for this reaction in kJ/mol.arrow_forwardPart I. Draw reaction mechanism for the transformations of benzophenone to benzopinacol to benzopinaco lone and answer the ff: Pinacol (2,3-dimethyl, 1-3-butanediol) on treatment w/ acid gives a mixture of pina colone and (3,3-dimethyl-2-butanone) 2,3-dimethyl-1,3-butadiene. Give reasonable mechanism the formation of the products Forarrow_forwardShow the mechanism for these reactionsarrow_forward
- Draw the stepwise mechanismarrow_forwardDraw a structural formula of the principal product formed when benzonitrile is treated with each reagent. (a) H₂O (one equivalent), H₂SO₄, heat (b) H₂O (excess), H₂SO₄, heat (c) NaOH, H₂O, heat (d) LiAlH4, then H₂Oarrow_forwardDraw the stepwise mechanism for the reactionsarrow_forward
- Draw stepwise mechanismarrow_forwardPart I. Draw reaction mechanism for the transformations of benzophenone to benzopinacol to benzopinaco lone and answer the ff: a) Give the major reason for the exposure of benzophenone al isopropyl alcohol (w/acid) to direct sunlight of pina colone Mechanism For b) Pinacol (2,3-dimethy 1, 1-3-butanediol) on treatment w/ acid gives a mixture (3,3-dimethyl-2-butanone) and 2, 3-dimethyl-1,3-butadiene. Give reasonable the formation of the productsarrow_forwardwhat are the Iupac names for each structurearrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning

