L2 Organic Chemistry

Question 1

name the 3 carbon alkane

Answer 1

propane

Question 2

name the 4 carbon haloalkane with a Cl off the 2nd carbon

Answer 2

2-chlorobutane

Question 3

name the 6 carbon haloalkane with a Iodine off the 3rd carbon

Answer 3

3-iodohexane

Question 4

name the 4 carbon carboxylic acid

Answer 4

butanoic acid

Question 5

what reagent changes an alkene to an alkane?

Answer 5

H2/Pt

Question 6

what reagent changes an alkene to a alcohol?

Answer 6

dilute sulfuric acid (dil H2SO4)

Question 7

Define a structural (or constitutional isomer)

Answer 7

a molecule with the same number and type of atoms but they are bonded in a different arrangement

Question 8

what reagent changes a haloalkane to an alkene and what type of reaction is it?

Answer 8

NaOH (or KOH) in alcohol- an elimination reaction

Question 9

Under what conditions does an alkane undergo a reaction with Br2 (aq)?

Answer 9

UV light - the reaction still occurs slowly

Question 10

when a hydrogen halide (eg HCl) is added to an asymetrical alkene what 2 products occurs

Answer 10

you will get major and minor products

Question 11

To remove the OH in an alcohol you would use what reagent and what type of compound would form?

Answer 11

Concentrated H2SO4 (sulfuric acid) and alkene would form

Question 12

The removal of an OH from an alcohol is what type of reaction?

Answer 12

Elimination reaction

Question 13

what are all products when 2-chlorobutane reacts with

KOH (alc) - give the type of reaction

Answer 13

but-2-ene (major) ,but-1-ene (minor) ,KCl and H2O

elimination

Question 14

What are the products when 2-chlorobutane reacts with NH3 (alc) - give the type of reaction

Answer 14

2-aminobutane , HCl -substitution reaction

Question 15

How could you distinguish between ethanol and cyclohexane using only water

Answer 15

add both to a test tube of water and see which one forms a layer and which dissolves - the ethanol dissolve where the nonpolar hexane will form 2 layers