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WorksheetsPREPARATION OF ETHYL ALCOHOL
Total questions: 25
Worksheet time: 8mins
The following are chemical tests for ethanol, EXCEPT:
Combustion of Ethanol
Alcoholic Fermentation
Iodofrom Test
Esterification
Give one other name of Ethanol
(a)
Uses of Ethanol
I. Industrial solvent to help create inks, resins, adhesives, and dyes
II. Used in preserving biological specimens
III. Widely used solvent for paint, varnish, and drugs
IV. Used as the fluid in thermometers
I, II, III, IV
I, III, IV
I, II, III
II, III, IV
Which of the following are true regarding Ethanol effects in Human?
80-300 mg/dL: Ultimately resulting in death.
Above 600 mg/dL: Progressive loss of protective reflexes.
400-600 mg/dL: loss of balance, speech, and amnesia.
300-400 mg/dL: Nausea and loss of consciousness
Gasohol produces plenty air pollutants than gasoline
TRUE
FALSE
Ethanol is Completely immiscible with water.
TRUE
FALSE
It measures alcohol in expired air by the color change that occurs when the bright yellow-orange oxidizing agent Potassium dichromate is reduced to blue-green chromium (III).
Gas Chromatography
Breathalyzer test
Alcoholic Fermentation
Breathing Test
Ethanol burns with what color?
RED
BLUE-GREEN
ORANGE
PALE BLUE
Product of Combustion
(a)
It treats alcoholism in which there is an irreversible inhibition of the enzyme aldehyde dehydrogenase
Disulfiram
Acamprosate
Naltrexone
Gabapentin
The higher the Molecular weight, the lower antiseptic action
TRUE
FALSE
The lower the concentration, the greater the antiseptic activity
FALSE
TRUE
40% Isopropyl is equivalent to _ ethanol.
50%
80%
60%
70%
if there is branching, this causes a decrease in antiseptic action of alcohols
TRUE
FALSE
Ethanol is a primary alcohol that has the ability to form _.
Methenyl chloride
Triiodomethane
Tribromomethane
Trifluoromethane
Most of the ethanol used in industry is made by alcoholic fermentation
TRUE
FALSE
Red/Orange indicates what combustion?
Partial Combustion
Complete Combustion
Incomplete Combustion
Semi-Partial Combustion
Ethanol can intensify the sedation caused by other central nervous system depressant drugs
TRUE
FALSE
Ethanol is classified as a teratogen
TRUE
FALSE
Which of the following pairs are correct regarding the concentration of ethanol?
I. Distilled liquors: 35-90%
II. Table wines: 3-5%
III. Beers: 10-13%
IV. Distilled liquors: 20-75%
V. Beers: 3-5%
VI: Table wines: 10-13%
I, II, III
I, V, VI
IV, V, VI
II, III, IV
Metabolism of ethanol mainly occurs in what organ?
KIDNEY
SPLEEN
LIVER
BRAIN
Which of the following statements are incorrect?
I. Nicotinamide Adenine Dinucleotide Phosphate is an oxidizing co-enzyme
II. Metabolism of ethanol is through oxidation
III. Ethanol is a carcinogen
IV. Ethanol is volatile, flammable, and colorless liquid
V. Formic acid destroys the optic nerve of the eyes leading to blindness
II, IV, V only
I, III only
I, II only
III, IV, V only
Which of the following statements are correct?
I. In the kidney, ethanol stimulates production of acid
II. In pituitary gland, alcohol inhibits the production of a hormone that regulates urine flow, causing increased urine production and dehydration
III. Throughout the body, it causes blood vessels to constrict, resulting in flushing of the skin
IV. The result, though, is not warming of the body but an increase loss of heat at the surface, making alcoholic beverages a poor choice in cold weather.
II, III and IV only
I and III only
I, II, III and IV are correct
II and IV only
Boiling point of ethanol is close to water
FALSE
TRUE
The fermentation process takes _ days and is carried out at a temperature between 250°C and 300°C.
(a)
