Organic Chemistry Questions

Part 2 i Write the correct structures Isobutylmethyl ether Diethyldisulfide

vi What major product s would you expect from the following reactions Show the reaction mechanim 1 Acid catalyzed dehydration of alcohols 2 Acid catalyzed addition of alcohols to alkenes 3 Acid catalyzed ring opening

Rank the following compounds in order of decreasing dipole moment I OI III I II O II

4 State whether each reaction will proceed and include your justification Note at least one of the following reactions is not possible 3 marks a ethanol and an oxidizing agent producing acetic acid b benzene and chlorine gas producing 5 6 dichloro 1 3 cyclohexadiene c C CH3 2OHCH CH3 reacting to completion with an oxidizing agent

All of the following have resonance structures EXCEPT 2 NO3 1 SO3 NO2 1 CH O

R CH COOH CI Perkin reaction is best prepared by

13 20 Identify the chiral carbon in each of the following compounds a amphetamine Benzedrine stimulant used in the treatment of hyperactivity b norepinephrine increases blood pressure and nerve transmission HO CH CH CH NH HO OH CH CH NH

5 What must occur to enforce a lien O a The lien must be taken to court and the property foreclosed b Nothing has to happen The lien will automatically resolve itself c The lien has to be taken to the lender and the loan must be cancelled d The lien must be used to sue for the unpaid balance

Identify the following compound s havingthe lowest boiling point 000 IV H HH HHH CH H C C C C C H HHH HH HHHHH H C H I O H H H H H HC H H H C C C H H CH HH H HHHHHH H H HHH HH IV

5 Which of the following would not file a Notice of Completion O a Building inspector b Owner c Original contractor d Title company

What is the whole mechanism of this reaction km ly coon C coun

Which of the following molecules is polar OCH 02 CO HCI GS

1 Analyze the reactions Determine the type of reaction that is occurring and then provide an additional example of another reaction that would follow the same mechanism Please note that you may not use examples provided in the course content 1 mark each a CH3CH CH OH CH3 HBr CH3CH CH Br CH3 H O b CH3CHCHCH CH3 2 Cl2 CH3CH C1 CH C1 CH CH3 2 c 2 methyl 2 pentene producing 2 methylpentane d acetic acid combining with methanol to form CH3COOCH3 and water

From the condensed structural formula determine if the structure represents a saturated fatty acid a monounsaturated fatty acid or a polyunsaturated fatty acid SATURATED FATTY ACID MONOUNSATURATED FATTY ACID POLYUNSATURATED FATTY ACID CH3CH CHCHCH COOH

What is the predominant product in the following scheme OCH 3 OCH 3 OH ollow OH OCH 3 i OCH 3 ol NaOet etOH H O A

O O What is the product of the following reaction HO Ea 0 O O EtONa EtOH i OH OH H O0 A

What is the name of the phase change that occurs when carbon dioxide goes from the solid state immediately to the gaseous state Omelting Ovaporization condensation sublimation deposition

Modify the given carbon skeleton to draw the major product s of the given reaction If a racemic mixture of enantiomers is expected draw both enantiomers Note you can select a structure and use Copy and Paste to save drawing time Edit Drawing

Which of the following compounds has the shortest carbon carbon bond OOOC 01 IV H H H C C H H H 1 H C C H H HH HCH H J H H H H CEC H IV

What is the major product of the following reaction 1 NaH O III 2 11 CI IV

9 Which act tracks general contractors subcontractors suppliers and laborers involved in a project a American Land Title Act b agency law c State Construction Registry d Residence Lien Restriction and Lien Recovery Fund Act

d 3 methylhexanal 12 58 Draw the condensed structural pr line angle formula if cyclic for each of the following 12 3 a formaldehyde b 2 chlorobutanal c 3 methyl 2 hexanone d 3 5 dimethylhexanal

D S 2 methyl 1 butyn 3 ol the percent composition of a mixture of S 2 butanol a 25 13 52 and R 7 anol a 13 52 with a specific rotation a 25 6 760 observed A 75 R 25 S B 25 R 75 S C 50 R 50 S D 67 R 33 S E 33 R 67 S utyn 1 ol

For the following compound identify the polar covalent bond s from the options provided M H HH I and II II and III and III I only Il only

Identify the following compound s expected to be the most soluble in butane CH3CH CH CH3 HHHH H C C C C O H HHHH 11 0000 IV HHHHH H C C C C C H HHHHH HH HH H C C O C C H HH III HHH 111 H C C C CI III HHH IV

3 The American Land Title Act title insurance protects against problems that a will occur in the future b the title holder selects in advance c have been discovered though a title search d could have been discovered through a search or inspection

Some vitamins and dietary supplements are stored in opaque darkened bottles to protect them from UV light because UV light would cause a reaction Which word could be used to describe UV light in this situation O A Reactant O B Catalyst O C Solvent O D Enzyme

For soap molecules to remove and dissolve oil in water what molecular features are needed A one end of the molecule must be polar B the compound must contain oxygen atoms C one end of the molecule must be nonpolar Both A and C All A B and C

5 A short section of the polymer polypropylene is shown below a Draw and name the monomer that is used to make this polymer 2 marks b What type of polymer is polypropylene It is created through what type of reactions 2 marks CHY CH H CH3

11 If a claimant is on the title for how long must he or she have adverse possession of a property before attempting to claim ownership a four years b ten years c two years d seven years

1 Mass of evaporating dish 9 2 Mass of evaporating dish and solution g 3 Mass of solution g Row 2 Row 1 4 Mass of evaporating dish and solid KCI g 5 Mass of evaporating dish and solid KCI after 2nd heating g 6 Mass of evaporating dish and solid KCI after 3rd heating g if needed 7 Mass of solid KCI g Row 5 or 6 Row 1 8 Mass of water g Row 3 Row 7 482209 54 8019 6 5819 50 1939 49 9539 49 9039 1 733 4 848 Mass percent of KCl show calculations 35

why does iodine dissolve in hexane does i2 dissolve in ccl4

If an engineer s greatest concern is easy maintenance of a rocket throughout the years the rocket should be designed to use which type of fuel A Liquid chemical fuel B Gaseous fuel C Nuclear fuel D Solid chemical fuel

What is the approximate bond angle around the carbon atom in the following molecule 90 109 5 105 120 180 Cl CO

16 Which of the following terms is defined as legal action taken by a person who has integrated labor or materials into a property and has not been paid O a Recovery Act b mechanic s lien c agency law d adverse possession

What causes radiation heating A Heat transfer through electromagnetic waves B Heat transfer through differences in temperatures C Heat transfer through moving gases or liquids D Heat transfer through contact between molecules

OA OB OC OD Predict the major product for this Diels Alder reaction a racemic product is formed H CO CN a v o r A B C A CN D

7 The structure of acetanilide is shown below Use ARIO to Rank the relative acidities of three types of Hydrogen consider all the Hs on aromatic ring to be same type and acidity Explain the reason s underling you re ranking In the acylanilide compound there are three acidic hydrogens Hydrogen or nitrogen of amide functional group is most acidic because of electronegativity nitrogen atom just like aromatic hydrogen at para position and ortho position are acidic nature CH3

Closely examine the compounds below Which one will N have an oxidation of 3 1 Select the compound in which nitrogen has an oxidation state of 3 O NO ONO2 ON ONH3 HNO3

What are the partial pressures in a mixture contaiin 0 254 mol of O2 and 0 569 mol of N2 if the total pressure is 157 0 torr PO2 48 5 torr PN2 109 torr PO2 70 1 torr PN2 86 9 torr PO2 39 9 torr PN2 89 3 torr PO2 76 9 torr PN2 80 1 torr

13 52 Kate s blood volume is 3 9 L After three months of diet and exercise if her blood glucose is 146 mg dL how many grams of glucose are in her blood

What is the product of the following reaction NaOCH3 S CH OH OH lo I O III OIV 11 OH IV

A gas mixture contains 0 45 mol of neon and 0 56 mol of xenon in a 4 00 L flask at 318 K What is the total pressure of the mixture h Select the correct answer below 6 6 atm 0 80 atm O 3 9 atm 3 7 atm

How many hydrogen atoms are in 0 1488 g of phosphoric acid H PO

Identify three constitutional isomers having the molecular formula C4H8O I II and III II III and IV III IV and IV I II and IV II III and V 1 OH 11 OH IV OH

Which of these has lowest viscosity as a liquid CH3CI OCH3CH CH3 OCH3OCH 3 CH3CH NH2

Which of the following compounds have trigonal planar arrangement of electron pairs I II and III I II IV and V III and IV and V II and III All of these H C H H 0 S 0 BIF M H O H IV H N H H V

What is the correct combination of A B and C H H HH A HBr CCIA B 1 C A H Pt C ethanol B Na NH3 C 1 BH3 THF 2 H O2 NaOH A H Pd BaSO4 B LINH2 NH3 C HgSO4 H SO4 O A Na NH3 B NaNH2 NH3 C 1 R BH THF 2 H O2 NaOH O A Li NH3 B NaOtbu C 1 Hg OAc 2 H O 2 NaBH4 3 PCC 2

Reaction of ethanolic NH3 acid EtBr excess results in the formation of a 1 amine 2 amine 3 amine No reaction

Indicate the predominant intermolecular attractions occurring in the molecule shown below CH3F fluoromethane covalent bonds ion dipole O dispersion forces dipole dipole forces hydrogen bonds