Which of the following is used as an antifreeze?
(a) Ethylene glycol
(b) Glycerol
(c) Diethyl ether
(d) Picric acid

1 Answer

Answer :

Ethylene glycol

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Description : Which of the following statements is false? (a) Diethyl ether has been used as a general anesthetic (b) Ethyl alcohol is present in all alcoholic beverages (c) Methyl alcohol is produced by fermentation of sugars (d) Ethylene glycol is a common antifreeze for automobiles

Last Answer : Methyl alcohol is produced by fermentation of sugars

Description : Ethylene reacts with oxygen in the presence of silver catalyst at 300°C to form (a) Diethyl ether (b) Ethylene glycol (c) Ethyl alcohol (d) Ethylene oxide

Last Answer : Ethylene oxide

Description : (3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is ... A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

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Description : Ethyl alcohol reacts with concentrated H2SO4 at 140°C to form (a) Acetone (b) Ethylene (c) Diethyl ether (d) Acetic acid

Last Answer : Diethyl ether

Description : Ethanol on heating with concentrated H2SO4 at 170°C gives (a) ethylene (b) ethyl hydrogen sulfate (c) diethyl ether (d) diethyl sulfate

Last Answer : ethylene

Description : Ethyl alcohol can react with concentrated H2SO4 to give (a) Ethylene (b) Diethyl ether (c) Ethyl hydrogen sulfate (d) All of these

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Description : Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride

Last Answer : Ethyl chloride

Description : Chemically, fats are esters of long carbon-chain acids and which of the following: w) ethanol x) glycerol y) ethylene glycol z) sodium hydroxide

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Last Answer : Acetic acid and P2O5

Description : Teryleneisa condensation polymer of ethylene glycol and which acid? (1) Benzoic Acid (2) Salicylic acid (3) Phthalic acid (4) Terephthalic acid

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Last Answer : Styrene

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Last Answer : Phenol and formaldehyde

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Description : When ethylene glycol is heated with concentrated HNO3, it forms (a) Oxalic acid (b) Ethylene oxide (c) Dioxane (d) Diethylene glycol

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Description : Ethylene glycol undergoes oxidation with hot acidic KMnO4 to form : (a) Formic acid (b) Formaldehyde (c) Acetic acid (d) Acetaldehyde

Last Answer : Formic acid

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Last Answer : Ethylene glycol

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Description : Write the metamer of diethyl ether. What is its IUPAC name?

Last Answer : Ans.1-methoxypropane, CH3OCH2CH2CH3 or 2-methoxypropane,CH3OCH(CH3)2

Description : Ethyl acetate on heating with sodium ethoxide gives (a) Ethyl acetoacetate (b) Sodium acetate (c) Ethyl alcohol (d) Diethyl ether

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Description : Which of the following will have the highest boiling point? (a) Diethyl ether (b) n-Butane (c) Acetamide (d) n-Propylamine

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Description : Which of the following functional group series is ranked according to increasing boiling points? (a) diethyl ether, ethane, ethanol, ethanethiol (b) ethane, ethanol, diethyl ether, ethanethiol (c) ethane, diethyl ether, ethanethiol, ethanol (d) diethyl ether, ethane, ethanethiol, ethanol

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Last Answer : Diisopropyl ether

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Last Answer : Only CH3CH2

Description : Diethyl ether on heating with excess concentrated HI gives (a) Methyl iodide (b) Isopropyl iodide (c) Ethyl iodide (d) n-Propyl iodide

Last Answer : Ethyl iodide

Description : Diethyl ether reacts with sodium metal to give (a) Ethanol (b) Sodium ethoxide (c) Ethanal (d) Nothing happens

Last Answer : Nothing happens

Description : Ethyl bromide reacts with sodium methoxide to form (a) Diethyl ether (b) Ethyl methyl ether (c) Dimethyl ether (d) n-Propyl alcohol

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Description : Which of the following has the highest boiling point? (a) diethyl ether (b) n-Butyraldehyde (c) n-propyl chloride (d) n-Butyl alcohol

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Description : Which of the following compounds does not dissolve in concentrated H2SO4 on warming? (a) n-Hexane (b) Diethyl ether (c) 1-Butene (d) Aniline

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Description : Which is used in preparation of dynamite? (1) glycerol (2) ethyl alcohol (3) methyl alcohol (4) glycol

Last Answer : (1) glycerol Explanation: Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay) and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, and patented in 1867.

Description : Which is used in preparation of dynamite? (1) glycerol (2) ethyl alcohol (3) methyl alcohol (4) glycol

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Description : Diethyl ether is used as

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