Aldehydes

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Total cards: 23•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (23)

Front (Question)

What planar carbon compounds are studied as part of your course? (7)

Back (Answer)

Alkenes Alkynes Aldehydes Ketones Carboxyl acids Esters Aromatic compounds

Front (Question)

What is the functional group of aldehydes?

Back (Answer)

The -CHO group

Front (Question)

What is the general formula of the aldehydes?

Back (Answer)

RCHO

Front (Question)

What is the general formula for the homologous series of aliphatic aldehydes?

Back (Answer)

CnH2n+1 CHO

Front (Question)

How are aldehydes named?

Back (Answer)

They are named from the parent alkane by changing the -e ending to -al

Front (Question)

What is the aldehyde corresponding to methane?

Back (Answer)

Methanal

Front (Question)

What is the aldehyde corresponding to ethane?

Back (Answer)

Ethanal

Front (Question)

What is the aldehyde corresponding to propane?

Back (Answer)

Propanal

Front (Question)

Name the aldehyde given by the formula HCHO

Back (Answer)

Methanal

#10

Front (Question)

Name the aldehyde given by the formula CH3CHO

Back (Answer)

Ethanal

#11

Front (Question)

Name the aldehyde given by the formula C2H5CHO

Back (Answer)

Propanal

#12

Front (Question)

Name the aldehyde given by the formula C3H7CHO

Back (Answer)

Butanal

#13

Front (Question)

Name the aldehyde given by the formula C3H7CHO

Back (Answer)

2-methylpropanal

#14

Front (Question)

What is the formula of Methanal

Back (Answer)

HCHO

#15

Front (Question)

What is the formula of ethanal?

Back (Answer)

CH3CHO

#16

Front (Question)

What is the formula of propanal?

Back (Answer)

C2H5CHO

#17

Front (Question)

What is the formula of butanal?

Back (Answer)

C3H7CHO

#18

Front (Question)

What is the formula of 2-methylpropanal

Back (Answer)

C3H7CHO

#19

Front (Question)

Where must the aldehyde functional group always occur?

Back (Answer)

At the end of the carbon chain

#20

Front (Question)

What is the structure of the carbonyl group

Back (Answer)

O || -C

#21

Front (Question)

Describe the bond angles in the carbonyl group.

Back (Answer)

The carbonyl group and the atoms to which it is bonded all lie in the one plane with all bond angles of 120 degrees

#22

Front (Question)

What is the main difference between the C = O and the C = C group in ethene?

Back (Answer)

The carbonyl group is strongly polar

#23

Front (Question)

Why is the carbonyl group strongly polar?

Back (Answer)

Due to the different electronegativity values of carbon and oxygen