Chemistry in Everyday Life MCQ Questions & Answers in Organic Chemistry | Chemistry
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131.
Which of the following acts as an antioxidant in edible oils ?
A
Vitamin $$B$$
B
Vitamin $$C$$
C
Vitamin $$D$$
D
Vitamin $$E$$
Answer :
Vitamin $$E$$
Vitamin $$E$$ is an antioxidant present in edible oils.
132.
Which of the following is a narcotic analgesic?
A
Ibuprofen
B
Aspirin
C
Paracetamol
D
Morphine
Answer :
Morphine
Morphine is a narcotic analgesics which when administered in small doses relieve pain and produce sleep.
133.
Which of these is a hypnotic ?
A
metaldehyde
B
acetaldehyde
C
paraldehyde
D
None of these
Answer :
paraldehyde
Paraldehyde is a hypnotic.
134.
When salicylic acid is treated with acetic anhydride we get
A
aspirin
B
paracetamol
C
salol
D
none of these
Answer :
aspirin
135.
Salol can be used as
A
antiseptic
B
antipyretic
C
analgesic
D
None of these
Answer :
antiseptic
Salol is phenyl salicylate used as antiseptic.
136.
What is the problem faced while using alitame as artificial sweetener?
A
It decomposes when added to the food items.
B
It provides a huge number of calories to the food.
C
It is difficult to control the sweetness of food while using it.
D
It increases the volume of the contents to a large extent.
Answer :
It is difficult to control the sweetness of food while using it.
Alitame is high potency sweetener although, it is more stable than aspartame, the control of sweetness of food is difficult while using it.
137.
The use of aspartame is limited to cold foods and drinks because
A
it is unstable to heat and decomposes at cooking temperature
B
it is 500 times sweeter than cane sugar
C
it becomes bitter at cooking temperature
D
it reacts with the food at cooking temperature
Answer :
it is unstable to heat and decomposes at cooking temperature
Aspartame is roughly 100 times as sweet as sucrose. It decomposes at baking or cooking temperatures and hence can be used only in cold foods and soft drinks.
138.
Some drugs do not bind to the enzyme's active site, instead bind to a different site of enzyme. This site is called
A
allosteric site
B
substrate site
C
ionic site
D
competitive site
Answer :
allosteric site
No explanation is given for this question. Let's discuss the answer together.
139.
End of detergents have
A
ester group
B
sodium sulphate
C
aldehyde
D
amine group
Answer :
sodium sulphate
A detergent molecule consists of a large hydrocarbon group that is non-ionic and a sulphonate $$\left( {SO_3^ - N{a^ + }} \right)$$ or a sulphate $$\left( {SO_4^ - \,N{a^ + }} \right)$$ group that is ionic. Examples of detergents are sodium - $$n$$ - dodecyl benzene sulphonate, sodium dodecyl sulphate etc.
140.
Which of the following defines the term opiates?
A
Narcotic analgesics obtained from the opium poppy.
B
Non-narcotic analgesics which reduce fever.
C
Narcotic drugs that inhibit pathogenic microbes.
D
Tranquilizers used to induce sleep.
Answer :
Narcotic analgesics obtained from the opium poppy.
Morphine narcotics are sometimes referred to as opiates, since they are obtained from the opium poppy.