mechanisms

Question 1

alkene to alkane

Answer 1

hydrogenation

reagents: hydrogen
conditions: Ni catalyst

Question 2

1° alcohol to aldehyde

Answer 2

oxidation reaction

reagents: K2Cr2O7 (aq) H2SO4
conditions: heat and distillation

Question 3

alkene to dibromoalkane

Answer 3

electrophilic addition

conditions: gas/inert solvent, rtp
reagents: br2

Question 4

2° alcohol to ketone

Answer 4

oxidation

reagents: k2cr2o7 (aq) h2so4 (aq)
conditions: heat, reflux

Question 5

alkene to alcohol

Answer 5

electrophilic addition

conditions: h3po4 catalyst
reagents: steam

Question 6

halogenalkane to alcohol

Answer 6

nucleophilic substitution
reagents: NaOH(aq)
conditions: heat, reflux
OR h2o/ethanol and agno3 to give ppt of AgX and enable C-X bond strength to be studied

Question 7

alkane to bromo or chloroalkane

Answer 7

free radical substitution

conditions: uv light
reagents: bromine or chlorine

Question 8

alcohol to haloalkane

Answer 8

nucleophilic substitution

reagents: NaX eg NaBr
conditions: h2so4 heat

Question 9

alcohol to alkene

Answer 9

elimination / dehydration

reagents: conc h2so4
conditions: heat

Question 10

1° alcohol to carboxylic acid

Answer 10

oxidation

reagents: k2cr2o7 (aq) h2so4
conditions: heat and reflux

Question 11

alkene to bromoalkane

Answer 11

electrophilic addition

reagents: Hbr
conditions: gas/inert solvent rtp