मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Explain why propanol has higher boiling point than that of the hydrocarbon, butane? - Chemistry

Advertisements
Advertisements

प्रश्न

Explain why propanol has higher boiling point than that of the hydrocarbon, butane?

रासायनिक समीकरणे/रचना
स्पष्ट करा
Advertisements

उत्तर

Propanol and butane have nearly the same molecular mass, but propanol has a higher boiling point because of intermolecular hydrogen bonding between its molecules. In butane, hydrogen bonding is not present due to the absence of the polar −OH group. The molecules of butane are connected by weaker van der Waals attraction forces.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Alcohols, Phenols and Ethers - Exercises [पृष्ठ २२२]

APPEARS IN

एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
पाठ 7 Alcohols, Phenols and Ethers
Exercises | Q 7.4 | पृष्ठ २२२

संबंधित प्रश्‍न

Give reasons for the following: Butan-1-ol has a higher boiling point than diethyl ether.


Give reasons for the following : Phenol is more acidic than ethanol.


Give reasons for the following : Boiling point of ethanol is higher in comparison to methoxymethane.


`CH_3-CH_2-Br"Alcoholic KOH"/""> B " HBR"/"">C"Na/Eather"/"">D`, the Compound D is

(A) ethane

(B) propane

(C) n-butane

(D) n-pentane


Arrange the following compounds in the increasing order of their acid strength:

p-cresol, p-nitrophenol, phenol


Identify the chiral molecule in the following pair :

 


Write the structures of A, B and C in the following reactions :

\[ C_6 H_5 {NO}_2 \to^{Sn/HCI} A \to^{{NaNO}_2 /HCI}_{273 K} B \to^{H_2 O}_∆ C\]


Write a chemical reaction to show that the open structure of D-glucose contains the following :  

Five alcohol groups


Which of the following has lowest boiling point?


Assertion: Boiling points of alcohols and ethers are high.

Reason: They can form intermolecular hydrogen-bonding.


A solution of phenol in chloroform when treated with aqueous NaOH gives compound P as a major product. The mass percentage of carbon in P is ______. (to the nearest integer) (Atomic mass: C = 12; H = 1; O = 16)


What is esterifications? How is an ester obtained from alcohol or phenol?


How are the following conversions carried out?

Methyl magnesium bromide →  2 -Methylpropan-2-ol.


Convert the following:

acetaldehyde to isopropyl alcohol.


How are the following conversions carried out?

\[\ce{Methyl magnesium bromide ->2-Methylpropan-2-ol}\]


How are the following conversions carried out?

\[\ce{Methyl magnesium bromide -> 2-Methylpropan-2-ol}\]


How is the following conversion carried out?

\[\ce{Methyl magnesium bromide-> 2-Methylpropan-2-ol}\]


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×