Question

write two examples for each functional groups:
1) -CHO
2) -OH

Answer 1

TWO EXAMPLES FOR -CHO ARE:

a)Formaldehyde or methanal(HCHO)

b)Acetaldehyde or ethanal (CH₃CHO)

TWO EXAMPLES OF -OH ARE:

a)Methyl alcohol or methanol(CH₃OH)

b)Ethyl alcohol or ethanol (C₂H₅OH)

hope this helps....

Answer 2

$\sf{Answer -}$

1. $-CHO$

It is the aldehyde functional group. While naming the aldehydes, we use -al as a suffix.

For example-

》$H-CHO$

It's IUPAC name is Methanal since, it has one carbons and having $-CHO$ as a functional group.

Common Name - Formaldehyde

》$CH_{3}-CHO$

It's IUPAC name is Ethanal since, it has two carbons and having $-CHO$ as a functional group.

Common Name - Acetaldehyde

2. $-OH$

It is the alcohol functional group. While naming the alcohol, we use -ol as a suffix.

》$CH_{3}-OH$

It's IUPAC name is Methanol since, it has one carbons and having $-OH$ as a functional group.

Common name - Methyl Alcohol

》$CH_{3}-CH_{2}-OH$

It's IUPAC name is Ethanol since, it has two carbons and having $-OH$ as a functional group.

Common name - Ethyl Alcohol