Which compound is likely to have the highest boiling point?

C H_{3} - C H_{2} - C H_{2} - O H

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C H_{3} - C O - C H_{2} - C H_{3}

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C H_{3} - O - C H_{2} - C H_{3}

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C H_{3} - C H_{2} - C H_{2} - S H

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Solution

The correct option is A $C H_{3} - C H_{2} - C H_{2} - O H$
When a hydrogen atom is directly attached to an electronegative atom, such as oxygen, nitrogen or fluorine, it forms intermolecular hydrogen bonds.

In n-propyl alcohol $(C H_{3} - C H_{2} - C H_{2} - O H)$ , a hydrogen atom is attached to the oxygen atom in a hydroxyl group.

Hence, it forms intermolecular hydrogen bonds.

The compounds in the options $B$ to $C$ do not form intermolecular hydrogen bonds.

Hence, the boiling point of n-propyl alcohol is maximum among given compounds.

Option A is correct.

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Similar questions

Q. Which of the following is the correct increasing order of boiling point of the following compounds?

C H_{3} - C H_{2} - C H_{2} - O H

II)

C H_{3} - C H | O H - C H_{3}

III)

C H_{3} - O - C H_{2} - C H_{3}

Name the functional groups present in the following compounds: [5 MARKS]

1. ${CH}_{3} - {CH}_{2} - {CH}_{2} - OH$
2. ${CH}_{3} - {CH}_{2} - {CH}_{2} - COOH$
3. ${CH}_{3} - {CH}_{2} - CHO$
4. ${CH}_{3} - CO - {CH}_{2} - {CH}_{3}$
5. ${CH}_{3} - {CH}_{2} - CO-OH$

Q. Which of the following is position isomer of

C H_{3} - C H_{2} - O | | C - C H_{2} - C H_{3}

Q. Identify the type of the following reaction of carbon compounds.
a. CH₃ -CH₂ -CH₂-OH → CH₃ -CH₂ -COOH
b. CH₃ -CH₂ -CH₃ → 3CO₂ + 4H₂O
c. CH₃ -CH = CH -CH₃ + Br₂ → CH₃ -CHBr - CHBr -CH₃
d. CH₃ -CH₃ + Cl₂→ CH₃ -CH₂ -Cl + HCl
e. CH₃-CH₂ -CH₂ -CH₂ -OH → CH₃ -CH₂ -CH=CH₂ + H₂O
f. CH₃-CH₂ -COOH + NaOH → CH₃ -CH₂ -COO - Na⁺ + H₂O
g. CH₃ -COOH + CH₃ -OH → CH₃ -COO- CH₃ + H₂O

Q. IUPAC name of given compound:

C H_{3} - C H_{2} - C H_{2} - C H_{2} - C H | C H_{3} - C | C H_{3} - C H_{3} - C H_{2} - C H_{3} | C H - C H_{2} - C H_{2} - C H_{2} - C H_{3}

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