TEST BANK FOR Organic Chemistry 13th Edition Graham Solomons, Craig Fryhle, Scott Snyder (CHAPTERS 1-25)

Chapterm
1

MULTIPLEmCHOICEmQUESTIONS

Topic:mAtomicmOrbitals

1. Inmquantummmechanicsmamnodem(nodalmsurfacemormplane)mis:
A) amplacemwheremmismnegative.
B) amplacemwheremmismpositive.
C) amplacemwheremm=m0.
D) amplacemwherem2mismlarge.
E) amplacemwherem2mismnegativ
e.mAns:m C

Topic:mAtomicmOrbitals,mMolecularmOrbitals

2. Whenmthem1smorbitalsmofmtwomhydrogenmatomsmcombinemtomformmamhydrogenmmolecu
le,mhowmmanymmolecularmorbitalsmaremformed?
A) 1
B) 2
C) 3
D) 4
E) 5
Ans:mmmmBmTopi

c:mAtomicmOrbitals

3. Whichmprinciple(s)mormrulemmustmbemusedmtomdeterminemthemcorrectmelectronicmconfigurati
onmformcarbonminmitsmgroundmstate?
A) AufbaumPrinciple
B) Hund'smRule
C) PaulimExclusionmPrinciple
D) (A)mandm(B)monly
E) Allmthre
emAns:m
E




1

, Chapterm
1

Topic:mAtomicmOrbitals,mBonding

4. Whatmpointmonmthempotentialmenergymdiagrammbelowmrepresentsmthemmostmstablemstatem
formthemhydrogenmmolecule?




A) I
B) II
C) III
D) IV
E) V
Ans:m C

Topic:mAtomicmOrbitals,mMolecularmOrbitals

5. Accordingmtommolecularmorbitalmtheory,mwhichmmoleculemcouldmnotmexist?
A) H2
B) He2
C) Li2
D) F2
E) N2
Ans:m B

Topic:mAtomicmOrbitals,mMolecularmOrbitals

6. Whenmthemlsmorbitalsmofmtwomhydrogenmatomsmcombinemtomformmamhydrogenmmolecu
le,mwhichmmolecularmorbitalsmaremformed?
A) Onembondingmmolecularmorbitalmonly
B) Twombondingmmolecularmorbitals
C) Onembondingmmolecularmorbitalmandmonemantibondingmmolecularmorbital
D) Twomantibondingmmolecularmorbitals
E) Threembondingmmolecularmorbital
smAns:m C




2

, Chapterm
1

Topic:mAtomicmOrbitals,mHybridization

7. Themfollowingmelectronmconfigurationmrepresents .


1s 2sp3 2sp3 2sp3 2sp3
A) themgroundmstatemofmboron.
B) themsp3mhybridizedmstatemofmcarbon.
C) themsp3mhybridizedmstatemofmnitrogen.
D) themgroundmstatemofmcarbon.
E) anmexcitedmstatemofmcarbo
n.mAns:m C

Topic:mAtomicmOrbitals,mMolecularmOrbitals

8. Accordingmtommolecularmorbitalmtheory,minmthemcasemofmamcarbon-
carbonmdoublembond,mthemcarbon-
carbonmbondingmelectronsmofmhighermenergymoccupymthismmolecularmorbital.
A) mbondingmMO
B) mbondingmMO
C) *mantibondingmMO
D) *mantibondingmMO
E) *mbondingmM
OmAns:m B

Topic:mAtomicmOrbitals,mHybridization

9. IdentifymthematomicmorbitalsminmthemC-
Cmsigmambondminmethyne.mA)m (2sp2,m2sp2)
B)m (2sp3,m2sp3)
C)m (2sp,m2sp)
D)m (2p,m2p)
E)m(2sp,m1s)m
Ans:m C




3

, Chapterm
1

Topic:mLewismStructures,mFormalmCharges

10. Listedmbelowmaremelectronmdotmformulasmformseveralmsimplemmoleculesmandmions.mAllmvale
ncemelectronsmaremshown;mhowever,melectricalmchargesmhavembeenmomittedmdeliberately.
H H H H
.. .. .. .. m
Hm:mBem:mH Hm:mBm:mH Hm:mNm:mH Hm:mNm:mH Hm:mOm:mH
.. .. .. .. m
H H
I II III IV V

Whichmofmthemstructuresmactuallymbear(s)mampositivemcharge?
A) I
B) II
C) III
D) IIIm&mV
E) IVm&mV
Ans:m E

Topic:mLewismStructures,mFormalmCharges

11. Whatmis.t.hemformalmchargemonmoxygenminmthemfollowingmstructure?
H 3C O

CH3

CH3
m




A)m +2
B)m +1
C) 0
D) -1
E) -2
Ans:m B




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