Chemistry · Science General

Alcohols, Ethers and Carboxylic Acids

359 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
  1. Thromboxane

  2. Prostaglandin D2

  3. Misoprostol

  4. Platelet-activating factor

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thromboxane is a member of the family of lipids known as eicosanoids. The two major thromboxanes are thromboxane A2 and thromboxane B2. The distinguishing feature of thromboxanes is a 6-membered ether-containing ring.

Multiple choice
  1. oxidative decarboxylation

  2. oxidative carboxylation

  3. dehydrogenation

  4. decarboxylation and hydrogenation

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Isocitrate dehydrogenase catalyzes the oxidative decarboxylation of isocitrate to 2-oxoglutarate (alpha-ketoglutarate) in the citric acid cycle. This reaction removes a carboxyl group (decarboxylation) and involves NAD+ reduction (oxidative). The enzyme requires Mn2+ or Mg2+ as cofactor.

Multiple choice
  1. Benzoyl chloride

  2. Benzyl alcohol

  3. Benzyl chloroformate

  4. Benzylamine

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Benzoyl chloride is an organochlorine compound with the formula C6H5COCl. It is a colourless, fuming liquid with an irritating odour. It is mainly useful for the production of peroxides but is generally useful in other areas such as in the production of dyes, perfumes, pharmaceuticals, and resins.

Multiple choice
  1. Butyraldehyde

  2. Cadaverine

  3. Cadinene

  4. 1,4-Butynediol

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cadaverine is a foul-smelling compound produced by protein hydrolysis during putrefaction of animal tissue. Cadaverine is a toxic diamine with the formula NH2(CH2)5NH2, which is similar to putrescine.

Multiple choice
  1. Bisphenol A

  2. Polybutadiene

  3. Bromoacetic acid

  4. Acetic acid

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Acetic acid is an organic compound with the chemical formula CH3COOH. It is a colourless liquid that when undiluted is also called glacial acetic acid. As the main component of vinegar, it has a distinctive sour taste and pungent smell.

Multiple choice
  1. Acetanilide

  2. Acetoguanamine

  3. Acetone

  4. Acetonitrile

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Acetone is an organic compound with the formula (CH3)2CO. Acetone is miscible with water and serves as an important solvent. Familiar household uses of acetone are as the active ingredient in nail polish remover and as paint thinner.

Multiple choice
  1. Furan

  2. Furfural

  3. Furfuryl alcohol

  4. Furfurylamine

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Furfural is an aromatic aldehyde. Its chemical formula is OC4H3CHO. It is a colourless oily liquid with the odour of almonds, but upon exposure to air, samples quickly becomes yellow.

Multiple choice
  1. Ethyl Alchol

  2. Propane

  3. Methane

  4. Tetraethyl lead

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tetraethyl lead (TEL) was historically added to gasoline as an anti-knocking agent to prevent premature fuel combustion in engine cylinders. It increases octane rating and allows smoother engine performance. Though now phased out due to environmental concerns, it was the standard anti-knock additive for decades.

Multiple choice
  1. 2-Phosphoglyceric acid

  2. 3-Phosphoglyceric acid

  3. Glycidol

  4. Glycine

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Glycidol is an organic compound that contains both epoxide and alcohol functional groups. Being bifunctional it has a variety of industrial uses. The compound is a slightly viscous liquid that is slightly unstable and is not often encountered in pure form.

Multiple choice
  1. iodobenzene dichloride

  2. 2-iodoxybenzoic acid

  3. lithium bis(trimethylsilyl)amide

  4. lithium diisopropylamide

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

IBX acid or 2-iodoxybenzoic acid is an organic compound used in organic synthesis as an oxidising agent. This Periodinane is especially suited to oxidise alcohols to aldehydes.

Multiple choice
  1. dimethoxymethane

  2. dioxolane

  3. metaldehyde

  4. paraldehyde

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dioxolane is an heterocyclic acetal. It is related to tetrahydrofuran by interchange of one oxygen for a CH2 group. The corresponding saturated 6-membered C4O2 rings are called dioxanes. The isomeric 1,2-dioxolane (wherein the two oxygen centers are adjacent) is an peroxide. 1,3-dioxolane is used as a solvent and as a comonomer in polyacetals.

Multiple choice
  1. The Monsanto process

  2. The Shell higher olefin process

  3. Olefin metathesis

  4. Alkane metathesis

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Monsanto process is an important method for the manufacture of acetic acid by catalytic carbonylation of methanol. This process operates at a pressure of 30-60 atm and a temperature of 150-200 °C and gives a selectivity greater than 99%.

Multiple choice
  1. The Monsanto process

  2. The Shell higher olefin process

  3. Olefin metathesis

  4. Silylmetalation

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Monsanto process is an important method for the manufacture of acetic acid by catalytic carbonylation of methanol. This process operates at a pressure of 30-60 atm and a temperature of 150-200 °C and gives a selectivity greater than 99%.