Tag: chemical reactions of organic compounds
Questions Related to chemical reactions of organic compounds
Which of the following is not correctly matched with its uses ?
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Methanol : As a solvent for paints , varnishes etc.
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Ethanol : For denaturing spirit, in manufacture of formaldehyde.
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Ethers : To provide inert medium for chemical reactions , as anaesthetic.
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All are correctly matched.
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$C _2H _5Br+NaOH\rightarrow C _2H _6$
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$C _2H _5Br+NaOH\rightarrow C _2H _5OH$
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$C _2H _5Br+NaOH\rightarrow C _2H _4O$
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$C _2H _5Br+NaOH\rightarrow C _2H _2O$
Reaction:
$C _2H _5Br+NaOH\rightarrow C _2H _5OH$
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$CH _3CH _2Cl + KOH \rightarrow C _2H _5OH + HCl + K _2O$
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$CH _3CH _2Cl + KOH \rightarrow C _2H _3OH + KCl + H _2O$
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$CH _3CH _2Cl + KOH \rightarrow C _2H _3Cl + KOH + H _2$
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$CH _3CH _2Cl + KOH \rightarrow C _2H _5OH + KCl + H _2O$
Reaction:
$CH _3CH _2Cl + KOH \rightarrow C _2H _5OH + KCl + H _2O$
Ethyl alcohol is manufactured by the fermentation of :
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molasses
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starch
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both A and B
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none of the above
Commercial manufacturing occurs by fermentatiomn of molasses though natural fermentation in yeasts occurs by conversion of starch to ethanol.
Alcoholic beverages contain:
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Glycerol
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Ethyl alcohol
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Methyl alcohol
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Isopropyl alcohol
Alcoholic beverages contain ethyl alcohol (ethanol). Alcohol by volume(ABV) is a standard measure of how much alcohol ethyl alcohol is contained in a given volume of an alcoholic beverage.
Which of the following is an application of ethyl alcohol?
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as an antiseptic
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as an antipyretic
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as an antiallergic
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as a coagulating agent
Ethanol is used in medical wipes and in most common antibacterial hand sanitizer gels at a concentration of about 62% v/v as an antiseptic. Ethanol kills organisms by denaturing their proteins and dissolving their lipids and is effective against most bacteria and fungi, and many viruses, but is ineffective against bacterial spores.
.................. of molasses takes place in the presence of enzymes.
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Fermentation
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Reduction
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Polymerization
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Oxidation
Ethanol can be prepared by the fermentation of molasses. This is a biochemical process in which enzymes react to degrade biomass. Reduction, polymerization and oxidation reactions doesn't necessarily need
Which of the following alcohol is used for making acetaldehyde?
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Ethanol
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Methanol
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Propanol
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None of the above
Ethanol is used to prepare acetaldehyde.
Ethanol burns to produce carbon dioxide and water and can be used as :
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gas
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fuel
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antioxidant
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free radical
Ethanol burns to produce carbon dioxide and water and can be used as a fuel on its own or in mixtures with petrol (gasoline). "Gasohol" is a petrol/ethanol mixture containing approximately $10\%$-$20\%$ ethanol.
Glucose or fructose is converted into $C _2H _5OH$ in the presence of:
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invertase
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diastase
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maltase
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zymase
Alcoholic fermentation converts one mole of sucrose into two moles of ethyl alchohol, also known as ethanol and two moles of carbon dioxide, producing two moles of ATP in the process. The overall chemical reaction for fermentation of alcohol is as follow: