Q: 2-methyl pentane-1-ol is a:

As shown in the structure the \$-OH\$ functional group is attached to 1st degree carbon, hence it is \$1^0\$ alcohol.

Q: IUPAC name of the following compound is:\$CH_{3}-CH(C_{2}H_{5})-CH_{2}-CH(OH)-CH_{3}\$

IUPAC name of \$CH_{3}-CH(C_{2}H_{5})-CH_{2}-CH(OH)-CH_{3}\$ is 4-methyl -2- hexanol.The parent compound contains a 6 C atom chain and a hydroxyl group. Hence, it is a derivative of hexanol. The hydroxyl group is present on the second C atom and methyl substituent is present on the fourth C atom. Note: The longest chain of C atoms containing the \$-OH\$ group is selected as the parent alkane and numbered from the end closer to \$-OH\$ group.Hence, the correct option is \$\text{A}\$

Q: The IUPAC name of \$(CH_{3})_{2}CHCH_{2}CH_{2}OH\$ is:

\$H-\overset{\overset{4}{CH_3}}{\overset{|}{\underset{CH_3}{\underset{|}{C_3}}}}-\underset{2}{CH}-CH_2-OH\$3-Methyl butan-1-olOption A is correct.

Question 1

The IUPAC name is:

Accepted Answer

Hence IUPAC name is 3-methyl-3-pentanol.

Question 2

IUPAC name of the tertiary butyl alcohol is:

Accepted Answer

Above is the structure of tertiary butyl alcohol. Longest carbon chain contains 3 carbons and one methyl group and one hydroxy group at 2 position.Hence, the IUPAC name of tertiary butyl alcohol is 2-methyl-2-propanol.

Question 3

The IUPAC name of sec. butyl alcohol is:

Accepted Answer

The IUPAC name of the sec. butyl acohol is 2-butanol because the longest continue chain contain 4-carbon as well as the $-OH$ group is attached to 2nd carbon , hence the name is 2-butanol.

Question 4

2-methyl pentane-1-ol is a:

Accepted Answer

As shown in the structure the $-OH$ functional group is attached to 1st degree carbon, hence it is $1^0$ alcohol.

Question 5

$CH_3-CH_2-\overset{OH}{\overset{|}{C}H}-CH_2-CH_2-\underset{CH_3}{\underset{|}{C}H}-CH_2-CH_3$The IUPAC name of the compound is:

Accepted Answer

The parent chain will be of 8 carbons. The funtional group is $-OH$, so the name of the parent chain will be octanol.The numbering will start from left side, $-OH$ will get number 3 and $-CH_3$ will get number 6.Therefore, IUPAC name is 6-Methyl-3-octanol.Option B is correct.

Question 6

Which of the following is a tertiary alcohol?

Accepted Answer

Hint: The degree of alcohol is determined by the number of carbon atoms attached to the carbon having the alcohol functional group.ExplanationStep 1: Identify the degree of alcohol in each option.A) $Isobutyl alcohol$ - primaryIt is primary alcohol as the $OH$ is attached to the $C$ which is attached to one more carbon.B) $n-butyl alcohol$ - primaryIt is primary alcohol as the $OH$ is attached to the $C$ which is attached to one more carbon.C) $n-propyl alcohol$ - primaryIt is primary alcohol as the $OH$ is attached to the $C$ which is attached to one more carbon.D) $tert-butyl alcohol$ - tertiarytert-butyl alcohol is the tertiary carbon as $OH$ attached to that $C$ which is attached to 3 different carbons.2-methyl-2-propanol is the IUPAC name for tert-butyl alcohol.Correct Option: $D$

Question 7

The IUPAC name is:

Accepted Answer

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Question 8

IUPAC name of the following compound is:$CH_{3}-CH(C_{2}H_{5})-CH_{2}-CH(OH)-CH_{3}$

Accepted Answer

IUPAC name of $CH_{3}-CH(C_{2}H_{5})-CH_{2}-CH(OH)-CH_{3}$ is 4-methyl -2- hexanol.The parent compound contains a 6 C atom chain and a hydroxyl group. Hence, it is a derivative of hexanol. The hydroxyl group is present on the second C atom and methyl substituent is present on the fourth C atom.  Note: The longest chain of C atoms containing the $-OH$ group is selected as the parent alkane and numbered from the end closer to $-OH$ group.Hence, the correct option is $\text{A}$

Question 9

The IUPAC name of $(CH_{3})_{2}CHCH_{2}CH_{2}OH$ is:

Accepted Answer

$H-\overset{\overset{4}{CH_3}}{\overset{|}{\underset{CH_3}{\underset{|}{C_3}}}}-\underset{2}{CH}-CH_2-OH$3-Methyl butan-1-olOption A is correct.

Question 10

An example for a polyhydric alcohol is:

Accepted Answer

So, mannitol is a polyhydric alcohol, because it has 6-OH groups. Rest all are monohydric alcohols because they contain single hydroxy group.The correct option is 'D'.

Alcohols Phenols And Ethers

Chemistry
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The IUPAC name is:

IUPAC name of the tertiary butyl alcohol is:

The IUPAC name of sec. butyl alcohol is:

2-methyl pentane-1-ol is a:

$C H_{3} - C H_{2} - C ∣ H O H - C H_{2} - C H_{2} - C H_{3} ∣ C H - C H_{2} - C H_{3}$
The IUPAC name of the compound is:

Which of the following is a tertiary alcohol?

The IUPAC name is:

IUPAC name of the following compound is:

$C H_{3} - C H (C_{2} H_{5}) - C H_{2} - C H (O H) - C H_{3}$

The IUPAC name of $(C H_{3})_{2} C H C H_{2} C H_{2} O H$ is:

An example for a polyhydric alcohol is:

Alcohols Phenols And Ethers

Chemistry 8241 Views

The IUPAC name is:

IUPAC name of the tertiary butyl alcohol is:

The IUPAC name of sec. butyl alcohol is:

2-methyl pentane-1-ol is a:

CH3​−CH2​−C∣HOH−CH2​−CH2​−CH3​∣C​H​−CH2​−CH3​The IUPAC name of the compound is:

Which of the following is a tertiary alcohol?

The IUPAC name is:

IUPAC name of the following compound is: CH3​−CH(C2​H5​)−CH2​−CH(OH)−CH3​

The IUPAC name of (CH3​)2​CHCH2​CH2​OH is:

An example for a polyhydric alcohol is:

Chemistry
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$C H_{3} - C H_{2} - C ∣ H O H - C H_{2} - C H_{2} - C H_{3} ∣ C H - C H_{2} - C H_{3}$
The IUPAC name of the compound is:

IUPAC name of the following compound is:

$C H_{3} - C H (C_{2} H_{5}) - C H_{2} - C H (O H) - C H_{3}$

The IUPAC name of $(C H_{3})_{2} C H C H_{2} C H_{2} O H$ is: