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
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Thromboxane
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Prostaglandin D2
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Misoprostol
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Platelet-activating factor
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.
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oxidative decarboxylation
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oxidative carboxylation
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dehydrogenation
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decarboxylation and hydrogenation
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.
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Benzoyl chloride
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Benzyl alcohol
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Benzyl chloroformate
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Benzylamine
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.
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Butyraldehyde
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Cadaverine
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Cadinene
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1,4-Butynediol
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.
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Bisphenol A
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Polybutadiene
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Bromoacetic acid
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Acetic acid
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.
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Acetanilide
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Acetoguanamine
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Acetone
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Acetonitrile
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.
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Acetamiprid
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Acetaminosalol
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Acetamide
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Acetaldehyde
B
Correct answer
Explanation
Acetaminosalol is an organic compound with the chemical formula C15H13NO4. It is an esterfication product of salicylic acid and paracetamol.
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ethidium bromide
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ethyl acetate
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ethylamine
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benzocaine
B
Correct answer
Explanation
Ethyl acetate is the organic compound with the formula CH3COOCH2CH3. This colourless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues or nail polish removers.
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Furan
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Furfural
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Furfuryl alcohol
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Furfurylamine
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.
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Ethyl Alchol
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Propane
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Methane
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Tetraethyl lead
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.
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2-Phosphoglyceric acid
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3-Phosphoglyceric acid
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Glycidol
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Glycine
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.
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iodobenzene dichloride
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2-iodoxybenzoic acid
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lithium bis(trimethylsilyl)amide
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lithium diisopropylamide
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.
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dimethoxymethane
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dioxolane
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metaldehyde
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paraldehyde
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.
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The Monsanto process
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The Shell higher olefin process
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Olefin metathesis
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Alkane metathesis
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%.
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The Monsanto process
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The Shell higher olefin process
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Olefin metathesis
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Silylmetalation
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%.