Chemistry in Everyday Life Test

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Chemistry in Everyday Life Test - 52

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Weekly Quiz Competition

Question 1
1 / -0

Antidepresent drug among the following is:

A
phenelzine

B
promethazine

C
naproxen

D
cimetidine

Solution

Phenelzine is an antidepressant (monoamine oxidase inhibitor). This medication treats depression by restoring the balance of certain natural substance (neurotransmitters) in the brain. Phenelzine can improve your mood and feelings of well-being.
Question 2
1 / -0

The safest and the most common alternative of sugar is:

A
glucose

B
aspartame

C
saccharine

D
cyclodextrin

Solution

Aspartame is an atrificial, non-saccharide sweetener used as a sugar substitute in some fodds and beverages. Aspartame is a methyl ester of the aspartic acid/phenylalanine dipeptide.
Question 3
1 / -0

Cationic surfactant is:

A
$${ C }_{ 17 }{ H }_{ 35 }{ COONa }$$

B

C
$${ C }_{ 16 }{ H }_{ 33 }N({ CH }_{ 3 })_{ 3 }Cl$$

D
None of the above

Solution

Surfactants are molecules that contain hydrophilic and hydrophobic ends.
Surfactants come in four types-

$$1.$$ Anionic.
$$2.$$ Cationic
$$3.$$ Non-ionic
$$4.$$ Amphoteric

Cationic surfactants- A type of surfactant in which the active part of the molecule is a positive cation. Cationic detergents are usually quaternary ammonium salts.

For example- $$C_{16}H_{33}\overset {\oplus}{N}(CH_3)_3\overset {\circleddash}{Cl}$$
Question 4
1 / -0

Which of the follwoing is not used as food preservative?

A
sodium benzoate

B
sodium sulphate

C
salts of sorbic acid

D
acetyl salicylic acid

Solution

Sodium benzoate, sodium sulphate and salts of sorbic acid are the generally used food preservatives to store food whereas Acetyl Salicylic acid is an antiseptic used to treat fever and cold.
Question 5
1 / -0

Which of the following vitamins are water insoluble:

A
B6

B
B12

C
C

D
D
Question 6
1 / -0

The following compound is used as

A
An anti-inflammatory coompound

B
Analgesic

C
Hypnotic

D
Antiseptic

Solution
Question 7
1 / -0

Emulsification of $$10 \ ml$$ of oil in water produces $$2.4 \times 10^{18}$$ droplets. If the surfaces tension at the oil-water interface is $$0.03 \ Jm^{-2}$$ and the area of each droplets is $$12.5 \times 10^{-16}m^2$$, the energy spent in the formation of oil droplets is:-

A
$$90 \ J$$

B
$$30 \ J$$

C
$$900 \ J$$

D
$$10 \ J$$

Solution
Question 8
1 / -0

An aquatic species needs at least 4mg per litre of oxygen for their survival oxygen in water at 273K and 1 atm pressure is $${ 2.21\times 10 }^{ -3 }$$mol/L. The partial pressure of oxygen above water(in the atmosphere at 273K) need for survival of species is:

A
0.56atm

B
0.056atm

C
5.525atm

D
{ 5.525\times 10 }^{ -3 }atm

Solution
Question 9
1 / -0

Which of the following anti histamine does not act as antacid?

A
Terfendine

B
Lansoprazole

C
Cintindine

D
Rantidine

Solution

$$(B)$$ Lansoprazole
It does not act as antacid because it is used for treatment of nonerosive gastroesophsgeal reflux disease.
Question 10
1 / -0

Mixture of chloroxylenol and terpineol acts as:

A
antiseptic

B
antipyretic

C
antibiotic

D
analgesic.

Solution

1) The mixture of choloroxylenol and terpineol is antiseptic.

2) The example is dettol.