AS: Chemistry 2: Organic

Question 1

General formula of CARBONYL compounds?

Answer 1

Cn H2n O

Question 2

Secondary Alcohols are oxidised to…?

and how you gon get that?

Answer 2

KETONES

REFLUX 2• alcohol with
ACIDIFIED potassium dichromate (VI)

Question 3

Primary Alcohols are oxidised to?

and how you gonna get that?

Answer 3

ALDEHYDES ➡️ CARBOXYLIC ACIDS

• HEATING
• POTASSIUM DICHROMATE (VI)
• and SULFURIC ACID

Question 4

Test to distinguish between Aldehyde and Ketone?

Tollen’s

Answer 4

TOLLEN’s reagent

• Silver Mirror ~ ALDEHYDE
• No Change ~ KETONE

Question 5

Test to distinguish between Aldehyde and Ketone?

Benedict’s

Answer 5

Benedict’s solution

• Brick Red ppt ~ ALDEHYDE
• No Change ~ KETONE

Question 6

Conditions needed for Elimination?

Answer 6

• ETHANOLIC SOLVENT
• ⬆️ conc. of OH-
• ⬆️ Temperature ???

Question 7

How many arrows in Eli min at ion

Answer 7

3

Question 8

How many arrows in Nucleophilic Sub?

Answer 8

2

Question 9

What happens if a TERTIARY ALCOHOL reacts with POTASSIUM DICHROMATE (VI)

Answer 9

• NOTHING ?

Solution stays ? ORANGE

Question 10

How CAN you oxidise a TERTIARY alcohol?

Answer 10

Burning it ?

Question 11

To get JUST an Aldehyde, and not a Carboxyl Acid, what do you do?

Answer 11

heat EXCESS ALCOHOL with a CONTROLLED amount of o❌idising agent in DISTILLED APPARATUS so the aldehyde (boils at lower temp than ALCOHOL)
is DISTILLED OFF IMMEDIATELY‼️

Question 12

Primary Alcohol + Potassium DICHROMATE (VI) =

and what colour?

Answer 12

Aldehyde and Carboxylic Acid

ORANGE - GREEN

Question 13

Addition Polymers are formed from?

Answer 13

Alkenes

Question 14

Condensation Polymers are made from?

Answer 14

Two different monomers AND EACH monomer has at least 2 functional groups

Question 15

How are PolyAMIDES made?

Answer 15

dicarboxylic acids and diamines form amide links