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Balbharati solutions for Chemistry 12th Standard HSC for Maharashtra State Board chapter 11 - Alcohols, Phenols and Ethers [Latest edition]

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Chemistry 12th Standard HSC for Maharashtra State Board - Shaalaa.com

Chapter 11: Alcohols, Phenols and Ethers

Exercise
Exercise [Pages 252 - 253]

Balbharati solutions for Chemistry 12th Standard HSC for Maharashtra State Board Chapter 11 Alcohols, Phenols and Ethers Exercise [Pages 252 - 253]

Exercise | Q 1.01 | Page 252

Choose the correct option.

Which of the following represents the increasing order of boiling points of (1), (2), and (3)?

(1) \[\ce{CH3 - CH2 - CH2 - CH2 - OH}\]

(2) (CH3)2CHOCH3

(3) (CH3)3COH

  • (1) < (2) < (3)

  • (2) < (1) < (3)

  • (3) < (2) < (1)

  • (2) < (3) < (1)

Exercise | Q 1.02 | Page 252

Choose the correct option.

Which is the best reagent for carrying out the following conversion?

  • LiAlH4

  • Conc. H2SO4, H2O

  • H2/Pd

  • B2H6, H2O2 -NaOH

Exercise | Q 1.03 | Page 252

Choose the correct option.

Which of the following substrate will give ionic organic products on reaction?

  • CH3 - CH2 - OH + Na

  • CH3 - CH2 - OH + SOCl2

  • CH3 - CH2 - OH + PCl5

  • CH3 - CH2 - OH + H2SO4

Exercise | Q 1.04 | Page 252

Choose the correct option.

Which is the most resistant alcohol towards oxidation reaction among the following?

  • CH3 - CH2 - OH

  • (CH3)2CH - OH

  • (CH3)3C - OH

  • \[\begin{array}{cc}\ce{C2H5 CH - OH }\\|\phantom{}\\
    \ce{CH3\phantom{}}\end{array}\]

Exercise | Q 1.05 | Page 252

Choose the correct option.

Resorcinol on distillation with zinc dust gives _________.

  • Cyclohexane

  • Benzene

  • Toluene

  • Benzene-1, 3-diol

Exercise | Q 1.06 | Page 252

Choose the correct option.

Anisole on heating with concerntrated HI gives _________.

  • Iodobenzene

  • Phenol + Methanol

  • Phenol + Iodomethane

  • Iodobenzene + methanol

Exercise | Q 1.07 | Page 252

Choose the correct option.

Which of the following is the least acidic compound?

Exercise | Q 1.08 | Page 252

Choose the correct option.

The compound incapable of hydrogen bonding with water is _________.

  • CH3-CH2-O-CH3

  • CH3-CH2-CH2-CH3

  • CH3-CH2-CH2-OH

Exercise | Q 1.09 | Page 253

Choose the correct option.

Ethers are kept in air tight brown bottles because ______________.

  • Ethers absorb moisture

  • Ethers evaporate readily

  • Ethers oxidise to explosive peroxide

  • Ethers are inert

Exercise | Q 1.1 | Page 253

Choose the correct option.

Ethers react with cold and concentrated H2SO4 to form ________.

  • oxonium salt

  • alkene

  • alkoxides

  • alcohols

Exercise | Q 2.1 | Page 253

Answer in one sentence/ word.

Hydroboration-oxidation of propene gives _________.

Exercise | Q 2.2 | Page 253

Answer in one sentence/ word.

Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.

Exercise | Q 2.3 | Page 253

Answer in one sentence/ word.

Write the structure of optically active alcohol having molecular formula C4H10O

Exercise | Q 2.4 | Page 253

Answer in one sentence/ word.

Write the name of the electrophile used in Kolbe’s Reaction.

Exercise | Q 3.1 | Page 253

Answer in brief.

Explain why phenol is more acidic than ethyl alcohol.

Exercise | Q 3.2 | Page 253

Answer in brief.

Explain why p-nitrophenol is a stronger acid than phenol.

Exercise | Q 3.3 | Page 253

Answer in brief.

Write two points of difference between the properties of phenol and ethyl alcohol.

Exercise | Q 3.4 | Page 253

Answer in brief.

Give the reagents and conditions necessary to prepare phenol from Chlorobenzene

Exercise | Q 3.4 | Page 253

Answer in brief.

Give the reagents and conditions necessary to prepare phenol from Benzene sulfonic acid.

Exercise | Q 3.5 | Page 253

Answer in brief.

Give the equations of the reactions for the preparation of phenol from isopropyl benezene.

Exercise | Q 3.6 | Page 253

Answer in brief.

Give a simple chemical test to distinguish between ethanol and ethyl bromide.

Exercise | Q 4 | Page 253

An ether (A), C5H12O, when heated with excess of hot HI produce two alkyl halides which on hydrolysis form compound (B) and (C), oxidation of (B) gave and acid (D), whereas oxidation of (C) gave a ketone (E). Deduce the structural formula of (A), (B), (C), (D), and (E).

Exercise | Q 5.1 | Page 253

Write structural formulae for 3-Methoxyhexane

Exercise | Q 5.2 | Page 253

Write structural formulae for Methyl vinyl ether.

Exercise | Q 5.3 | Page 253

Write structural formulae for 1-Ethylcyclohexanol.

Exercise | Q 5.4 | Page 253

Write structural formulae for Pentane-1,4-diol

Exercise | Q 5.5 | Page 253

Write structural formulae for Cyclohex-2-en-1-ol.

Exercise | Q 6.1 | Page 253

Write IUPAC name of the following

Exercise | Q 6.2 | Page 253

Write IUPAC name of the following

\[\begin{array}{cc}\ce{CH3-CH-CH-CH2-OH}\\|\phantom{.....}|\phantom{.......}\\\ce{OH}\phantom{..}\ce{CH3}\phantom{.....}\end{array}\]

Exercise | Q 6.3 | Page 253

Write IUPAC names of the following

Exercise | Q 6.4 | Page 253

Write IUPAC names of the following

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Chapter 11: Alcohols, Phenols and Ethers

Exercise
Chemistry 12th Standard HSC for Maharashtra State Board - Shaalaa.com

Balbharati solutions for Chemistry 12th Standard HSC for Maharashtra State Board chapter 11 - Alcohols, Phenols and Ethers

Balbharati solutions for Chemistry 12th Standard HSC for Maharashtra State Board chapter 11 (Alcohols, Phenols and Ethers) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Chemistry 12th Standard HSC for Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Chemistry 12th Standard HSC for Maharashtra State Board chapter 11 Alcohols, Phenols and Ethers are Alcohols, Phenols and Ethers, Classification of Alcohols, Phenols and Ethers, Nomenclature, Alcohols and Phenols, Ethers, Uses of Alcohols, Phenols and Ethers.

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