Hydroxyl Group

Q.

Which of the following is the structure for pentanol?

1. 

2. 

3. 

4. 

Q.

Chemical formula of ethyl alcohol

1. $C{H}_{3}OH$

2. $C_4{H}_{9}OH$

3. $C_2{H}_{5}OH$

4. $HCHO$

Q. The general formula for alcohol is:

1. $C_n{H}_{2n+2}OH$
   

2. $C_n{H}_{2n+1}OH$
   

3. $C_n{H}_{2n-1}OH$
   

4. $C_n{H}_{2n+4}OH$
   

Q. why IUPAC name of propyl alcohol is 2-propanol not propanol

Q.

Write the names and formulas represented by the molecular formula $C_2{H}_{6}O$.

Q.

Butanone is a four carbon compound with functional group:

1. carboxylic acid

2. ketone

3. alcohol

4. aldehyde

Q. The suffix used for -OH is:

1. - al
2. - one
3. - ol
4. - oic acid

Q. The compound having molecular formula $C_9{H}_{20}O$ would be:

1. An aldehyde
2. A ketone
3. An alcohol
4. An ester

Q. Draw the structural formula of 2-propanol​. [1 mark]

Q.

Which of the following has a different functional group than $C{H}_3-C{H}_2-CHO$?

1. CH₃-CH₂-CH₂-CHO

2. 

3. CH₃COOH

4. 

Q. Which of the following functional groups are present in the compound $Cl-C{H}_2-C{H}_2-C{H}_2-C{H}_2-OH$

1. Alcohol
2. Aldehyde
3. Halo
4. Ether

Q.

Some organic compounds are given. Identify alcohol from the following.

1. $C{H}_3-C{H}_2-C{H}_2-C{H}_2-C{H}_3$

2. $C{H}_3-C{H}_2-O-C{H}_2-C{H}_3$

3. $C{H}_3-C{H}_2-C{H}_2-C{H}_2-OH$

4. $C{H}_3-C{H}_2-COOH$

Q. Chlorine replaces hydrogen from the hydrocarbons to produce various products. This type of reaction is called ______ reaction.

1. addition
2. substitution
3. combination
4. hydrogenation

Q.

What is the functional group present in the given compound?

1. Alcohol

2. Carboxylic Acid

3. Ester

4. Ketone

Q.
The IUPAC name of the given compound is .

1. butane-2, 3-diol
2. methyl-1, 2-ethanol
3. 2, 2-butanol

Q.

Functional isomer of $C{H}_3-C{H}_2-OH$ is:

1. All of these

2. 

3. CH₃−CH₂−CHO

4. CH₃−O−CH₃