26.1 - Carbonyl compounds Flashcards Preview

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Flashcards in 26.1 - Carbonyl compounds Deck (20):
1

How is aldehyde written in structural formula?

CHO

2

How are ketone groups written in structural formula?

CO

3

What is the suffix for an aldehyde?

-al

4

What is the suffix for a ketone?

-one

5

Name CH3COCH2CH2CH3

Pentan-2-one

6

What is used in equations to represent an oxidising agent?

[O]

7

What can aldehydes be oxidised into?

Carboxylic acids

8

What reagents are needed to oxidise aldehydes into carboxylic acids?

K2Cr2O7 / H2SO4

9

Can ketones be oxidised?

No

10

What type of mechanism can carbonyl groups undergo?

Nucleophilic addition

11

Why can both aldehydes and ketones react with nucleophiles?

Their C=O is polar because oxygen is more electronegative than carbon

12

What can be used to reduce aldehydes and ketones?

NaBH4

13

What is formed by the reduction of aldehydes and ketones?

Alcohols

14

What is used in an equation that represents a reducing agent?

[H]

15

What alcohols are aldehydes reduced to?

Primary

16

What alcohols are ketones reduced to?

Secondary

17

What colour change is observed when aldehydes/ketones are oxidised by K2Cr2O7 / H2SO4

Orange --> Green

18

What would you react an aldehyde with to increase the length of the carbon chain?

HCN

19

What conditions are needed for the reaction between an aldehyde + HCN?

H2SO4 / NaCN

20

What is formed from the reaction between propanal + HCN?

hydroxynitrile
CH3CH2CHOHCN