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

Arrange the following compounds in increasing order of boiling point. Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol - Chemistry

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प्रश्न

Arrange the following compounds in increasing order of boiling point. Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol

पर्याय

  • Propan-1-ol, butan-2-ol, butan-1-ol, pentan-1-ol

  • Propan-1-ol, butan-1-ol, butan-2-ol, pentan-1-ol

  • Pentan-1-ol, butan-2-ol, butan-1-ol, propan-1-ol

  • Pentan-1-ol, butan-1-ol, butan-2-ol, propan-1-ol

MCQ
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उत्तर

Propan-1-ol, butan-2-ol, butan-1-ol, pentan-1-ol

Explanation:

Boiling point increases with increase in molecular mass of the alcohols. Among isomeric alcohols 1° alcohols have higher boiling points than 2° alcohols. Thus, correct order is:

Propan-1-ol < butan-2-ol < butan-1-ol < pentan-1-ol.

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पाठ 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [पृष्ठ १५७]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 16 | पृष्ठ १५७

संबंधित प्रश्‍न

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


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


Alcohols are comparatively more soluble in water than hydrocarbons of comparable molecular masses. Explain this fact.


Give reason for the higher boiling point of ethanol 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


Identify the chiral molecule in the following pair :

 


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

Five alcohol groups


Alcohols have high boiling points because of ____________.


Alcohols of low molecular weight are _____________.


Which statement is not correct about alcohol?


Arrange the following in the increasing order of their property indicated:

ethanol, ethanoic acid, benzoic acid (boiling point)


Arrange the following in order of increasing boiling point:

Ethoxyethane, Butanal, Butanol, n-butane


Assertion (A): Alcohols react both as nucleophiles and electrophiles.

Reason (R): The bond between C–O is broken when alcohols react as nucleophiles.

Select the most appropriate answer from the options given below:


How are the following conversion carried out?

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


Write a note on Kolbe's reaction


Convert the following:

acetaldehyde to isopropyl alcohol.


How is the following conversion carried out?

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


How is the following conversions carried out?

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


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