Chemistry · Science General

Alcohols, Ethers and Carboxylic Acids

391 Questions

Alcohols, ethers, and carboxylic acids questions explore organic chemistry reactions, chemical formulas, and compound identifications. The topics cover practical applications like antifreeze production and specific chemical conversions. This material helps candidates preparing for science oriented competitive exams.

Organic reactionsChemical compounds identificationAlcohol conversionCarboxylic acid propertiesIndustrial chemical applications

Alcohols, Ethers and Carboxylic Acids Questions

Multiple choice organic compounds with functional group containing oxygen (part-1) uses of alcohols commercially important alcohols - ethanol some commercially important alcohols

Which of the following is used to get absolute alcohol from rectified spirit?

  1. $CaO$
  2. $Ca$
  3. $Ca{CO} _{3}$
  4. ${P} _{2}{O} _{5}$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A rectified spirit is a mixture with a composition of ethanol (95%) and water (5%). Using quicklime $(CaO)$ to absorb water content and finally contacting the solution with anhydrous copper sulphate removes the leftover traces of water that leaves absolute alcohol. 

Multiple choice organic compounds with functional group containing oxygen (part-1) uses of alcohols commercially important alcohols - ethanol some commercially important alcohols

Methylated spirit is ethanol containing methanol to render it unfit for drinking.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Methylated spirit is $10\%$ methanol and $90\%$ ethanol which is denatured alcohol used as a solvent and as fuel which is not fit for drinking as it is highly toxic in nature.

Multiple choice chemistry hydroxy compounds and ethers chemical properties of ethers ethers alcohols, phenols and ethers

An ether is more volatile than alcohol having the same molecular formula. This is due to:

  1. intermolecular hydrogen bonding in ethers

  2. dipolar character of ethers

  3. alcohols having resonance structures

  4. intermolecular hydrogen bonding in alcohols
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An ether which is almost nonpolar is more volatile than alcohol having same molecular formula .this is due to intermolecular hydrogen bonding in alcohols .so alcohols have high bonding point.

Multiple choice chemistry hydroxy compounds and ethers chemical properties of ethers ethers alcohols, phenols and ethers

Isopropyle methyl ether when treated with cold hydrogen iodide gives

  1. isopropyl iodide and methyl iodide

  2. isopropyl alcohol and methyl iodide

  3. isopropyl alcohol and methyl alcohol

  4. isopropyl iodide and methyl alcohol
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cleavage of ethers with HI follows an SN2 mechanism for primary/secondary alkyl groups. Isopropyl methyl ether yields isopropyl alcohol and methyl iodide.

Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) uses of alkali and alkaline earth metals uses of s block elements group 1 elements: alkali metals

Which of the following product is obtained when bleaching powder is distilled with acetone?

  1. $CCl _4$
  2. $CH _2Cl _2$
  3. $CH _3 -CH _3$

  4. none of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bleaching powder (calcium hypochlorite) acts as an oxidizing and chlorinating agent. Distilling it with acetone typically produces chloroform (CHCl3), not the options listed.

Multiple choice chemistry chemical equilibrium equilibrium in physical processes introduction to equilibrium chemical equilibrium and acids-bases

Which of the following solutions show positive deviation from Raoult's law?

  1. Acetone + Ethanol

  2. Acetone + Benzene

  3. Water + Methanol

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Positive deviation from Raoult's law occurs when the solute-solvent interactions are weaker than the solute-solute and solvent-solvent interactions. All the listed pairs (Acetone+Ethanol, Acetone+Benzene, Water+Methanol) exhibit this behavior.

Multiple choice chemistry chemical equilibrium equilibrium in physical processes introduction to equilibrium chemical equilibrium and acids-bases

Which of the following solutions does not  show positive deviation? 

  1. Acetone and Ethanol

  2. Toluene and Benzene

  3. Water and Ethanol

  4. Water and Methanol
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Toluene and Benzene form an ideal solution because their molecules are very similar in size and polarity, meaning they do not show significant positive or negative deviations from Raoult's law.

Multiple choice biology caskets of life observation of cells observing cells cell as structural and functional unit

Temporary mount of a peel is made in :

  1. Alcohol

  2. Water

  3. Glycerine

  4. Acetone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Temporary mount of a leaf peel is used to observe stomata. Stomata are small openings found widely scattered on the epidermis of leaves and young stems.
Glycerine is a dehydrating agent. Once glycerine is added it forms a protective layer that keeps it moistened. It avoids the drying of the specimen. If staining is done after adding glycerine then the specimen will not be stained properly because the stain will be washed off with glycerine.
Hence C is the option. 
Multiple choice biology caskets of life observation of cells observing cells cell as structural and functional unit

Temporary mount of a peel is made in :

  1. Alcohol

  2. Water

  3. Glycerine

  4. Acetone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Temporary mount of a leaf peel is used to observe stomata. Stomata are small openings found widely scattered on the epidermis of leaves and young stems.
Glycerine is a dehydrating agent. Once glycerine is added it forms a protective layer that keeps it moistened. It avoids the drying of the specimen. If staining is done after adding glycerine then the specimen will not be stained properly because the stain will be washed off with glycerine.