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Which of the following is a good approximation of the equilibrium temperature for the reaction at 200 000 atm if enthalpy and entropy are assumed to be temperature independent?

T = 3000 K

T = 1000 K

T = 4000 K

T = 100 K

Which of the following could be used to convert butan-1-ol to butan-1-amine?

Treat with SOCl2 and then with concentrated NH3

Treat with dilute H2SO4 then with concentrated NH3

Treat with concentrated H2SO4 then with concentrated NH3

Treat with concentrated NH3

If 3-chloro-3-methylpentane is heated in alcoholic potassium hydroxide, how many structural (constitutional) alkene isomers could be produced?

2

1

3

4

Which of the following has the greatest number of unpaired electrons in its ground electronic state?

Ti2+

Cl

Al

Zn2+

What is E o for the reaction 2 H2(g) + O2(g) → 2 H2O(l)?

1.23V

0.43 V

4.06 V

2.06 V

When equilibrium is established, which of the following will be true?

[A] > [B] > [C]

[A] < [B] < [C]

[A] = [B] = [C]

[A] = [B] < [C]

Which of the following processes is the most endothermic?

Na(g) --> Na+ (g) + e−

H2O(l)--> H2O(g)

F(g) + e−--> F − (g)

K + (g) + Cl− (g) --> KCl(s)

Which ion has the same electron configuration as Cl- ?

Sc3+

F-

P+

Si4+

Calculate the heat released (in kJ mol-1 ) during this reaction, using the bond enthalpies given.

296

521

563

1160

Which statement comparing catalytic reactions to non-catalytic reactions is correct?

The activation energy of the catalytic reaction is smaller.

The activation energy of the catalytic reaction is larger

The enthalpy of reaction of the catalytic reaction is small

The enthalpy of reaction of the catalytic reaction is larger

which of the following group probably has the most unpleasant odour?

propanamine

propanal

butyl butanoate

ethanol

Name this

N-ethylpropanamine

N-aminopentane

ethyl amino butane

butanamide

which of the following would have the formula C5H10O

pentanone

pentanol

pent-3-en-1-al

methoxybutane

What is the product of oxidation of propan-2-ol

propan-2-one

propanoic acid

propanal

propene

Which alkene would you use to prepare (1-bromoethyl)cyclohexane

ethenylcyclohexane

Which of the compounds E through K at the bottom of the page are enol tautomers of 2-butanone?

EFJ

ABC

JH

KIG

Calculate the ΔG°, in kJ, for the spontaneous reaction, if the E = 0.79V

-1.5E2 kJ

For nitrous acid, HNO2, Ka = 4.0 × 10–4. Calculate the pH of 0.54 M HNO2.

1.83

What is the pH of a solution made of 0.50 M acetic acid and 0.200 sodium acetate given the Ka of acetic acid is 1.8 x 10-5?

4.34

What VSEPR molecular shape do you expect for IF4 +?

seesaw

If n=2, what is l and ml respectively?

l = 0, 1; ml= -1, 0, +1

Which of the following is NOT a strong base? 1. Be(OH)2 c. NaOH 2. Li2O d. CaO

Be(OH)2

The oxidation number of Fe in K3Fe(CN)6 is:

+3

When ignited, a uranium compound burns with a green flame. The wavelength of the light given off by this flame is greater than that of

UV light

IR light

red light

radio waves

What is the valence electron for Polonium?

6p4

7p5

5p6

7p3

What type of reaction is this?

a Hoffmann rearrangement

a Gabriel synthesis

a Curtius rearrangement

an aldol reaction

Which is the most basic?

D

B

C

A

Based on the pKas for their corresponding ammonium ions, which arylamine above is the strongest base?

p-aminoaniline

aniline

p-cyanoaniline

they are all the same

This is the synthesis of methamphetamine. Intermediate A is an example of:

enamine

imine

imide

iminium ion

Which of the following is NOT a pair of isomers?

butan-2-one and butan-1-ol

ethyl benzene and 1,2-dimethylbenzene

urea and ammonium cyanate

pentan-2-one and pentanal

Examine the diagrams below carefully. Which of the burets shown below is/are ready for use?

4 only

1

2

3

An aqueous solution is 5.0% ethanoic acid (HC2H3O2) by mass and its density is 0.96 g mL−1 . What is the molar concentration of ethanoic acid in this solution?

0.80 mol L−1

4.8 mol L−1

12 mol L−1

0.087 mol L−1

Cubic closest packing is another name for _____________.

face-centered cubic packing

body-centered cubic packing

hexagonal closest packing

simple cubic packing

Which of the following is the correct order of boiling points for KNO3, CH3OH, C2H6, Ne?

Ne < C2H6 < CH3OH < KNO3

Ne < C2H6 < KNO3 < CH3OH

C2H6 < Ne < CH3OH < KNO3

Ne < CH3OH < C2H6 < KNO3

How many different tripeptides can be formed from the amino acids glycine, alanine and valine if each is used only once in each tripeptide?

6

5

4

3

Which is most similar for the elements in a group in the periodic table?

ground state electron configuration

physical state

boiling point

first ionization energy

Which base is most suitable to prepare a buffer solution with a pH = 11.00?

methylamine (Kb = 4.4´10-4 )

aniline (Kb = 4.0´10-10)

ammonia (Kb = 1.8´10-5 )

pyridine (Kb = 1.7´10-9 )

What is the concentration of the solution that results from mixing 40.0 mL of 0.200 M HCl with 60.0 mL of 0.100 M NaOH?

0.0600 M NaCl and 0.0200 M HCl

0.0200 M NaCl and 0.0200 M HCl

0.150 M NaCl

0.0200 M NaCl and 0.0600 M HCl

Based on the following table, in which compound is the energy difference between the HOMO and LUMO the largest?

W

X

Y

Z

This is an example of a(n) ____________ reaction.

Diels-Alder

Which of the following compounds would show the longest wavelength λmax in its UV spectrum?

c

a

b

d

The amount of energy in electromagnetic radiation is related to the frequency and wavelength of the radiation. High energy radiation like gamma rays is of:

high frequency and short wavelength

high frequency and long wavelength

low frequency and short wavelength

low frequency and long wavelength

Which of the following compounds will react as a diene in a Diels-Alder reaction?

c

a

d

b

Which of the following is an ortho- and para- director and a deactivator?

—Cl

—COCH3

—CH2CH2CH3

—OH

Which of the following is a meta- director?

—COCH3

—Br

—CH2CH2CH3

—OH

Identify 1 and 2 (if you only get one correct, you will only receive 5 marks and include catalysts)

1) HNO3, H2SO4 2) Br2, FeBr3

Which represents the nucleophile in this reaction?

A

Which is the most reactive toward electrophilic aromatic substitution

toluene (the one in the middle)

Intermediate in the elimination-addition mechanism of nucleophilic aromatic substitution.

benzyne

electron-withrawing

Meisenheimer complex

electron-donating

The electrophile in aromatic nitration.

+NO2

+NO

F-TEDA-BF4

benzyne

WhWhich of the peak in the IR spectrum shown is due to the C—O stretch in an alcohol?

3

What's the best reagent?

CrO3, acetone, H2O

1) CH3MgBr, ether 2) acid treatment

1) LiAlH4, ether 2) acid treatment

1) NaBH4, ethanol 2) acid treatment

What's the best reagent?

Dess-Martin periodinane

1) CH3MgBr, ether 2) acid treatment

1) LiAlH4, ether 2) acid treatment

1) NaBH4, ethanol 2) acid treatment

What's the best reagent?

1) NaBH4, ethanol 2) acid treatment

1) CH3MgBr, ether 2) acid treatment

1) LiAlH4, ether 2) acid treatment

Dess-Martin periodinane, CH2Cl2

Name the product

cyclopentene

Which signal in the following proton NMR is due to an alcohol proton?

3

2

1

4

What is the electrophile in this reaction

B

A

C

doesn't apply

This is an example of:

SN2 process

SN1 process

E1 process

E2 process

What is the value of ε°cell?

0.176

2.836

0.676

-0.676

Which of the following is the best reducing agent?

Mg

Cl2

Cl-

H2

Name this

2-propoxybutane

Which of the following will undergo rearrangement upon heating?

All will undergo rearrangement.

2-pentenyl phenyl ether

1-propenyl 2-propenyl ether

2-butenyl phenyl ether

How many peaks would appear in the 13CNMR for the following compound? Atoms other than carbon and hydrogen are labeled.

8

9

7

6