Chemistry in Everyday Life Test

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Chemistry in Everyday Life Test - 54

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Weekly Quiz Competition

Question 1
1 / -0

Assertion: In O/W emulsion, soap is mixed.
Reason: Soap reduces surface tension.

A
If both assertion and reason are true and reason is the correct explanation of assertion.

B
If both assertion and reason are true but reason is not the correct explanation of assertion.

C
If assertion is true but reason is false.

D
If both assertion and reason are false.

Solution

For emulsification, soap is added in O/W emulsion as it reduces surface tension and form better colloid.
Question 2
1 / -0

Water in oil(w/o), what is added as emulsifying agent.

A
Soap

B
Heavy metal

C
Gold

D
None

Solution

Soap
Question 3
1 / -0

Which is incorrect

A
Novestrol - Antifertility

B
Serotonine - Tranquilizer

C
zentac - antacid

D
none of these

Solution

the only anti-fertility drug is Novestrol,
Zantac is an acid reduction product
Some substances which are used as tranquilizers are valium and serotonin.
Question 4
1 / -0

Full form of GFC is?

A
Grazing food chain

B
Grazing fish chain

C
Gross food chain

D
Green forest conservation

Solution

GFC means "Grazing Food Chain".
A grazing food chain is a food chain in which the energy in the lowest trophic level is derived from photosynthesis.

GFC is the major source of energy flow in the terrestrial ecosystem.
Question 5
1 / -0

Refrigeration helps in food preservation by

A
Killing the germs

B
Reducing the rate of biochemical reactions

C
Destroying enzyme action

D
Sealing the food with a layer of ice

Solution

At low temperatures, the rate of biochemical reactions is reduced which stops the growth of bacteria hence preventing the food from getting spoiled.
Option B is correct.
Question 6
1 / -0

Which of the following chemicals is used as pain killer?

A
Phenyl acetate

B
Methyl acetate

C
Acetyl salicylic acid

D
Salicylic acid

Solution

Aspirin or acetylsalicylic acid is used to reduce fever and relieve mild to moderate pain from conditions such as muscle aches, toothaches, common cold, and headaches. It may also be used to reduce pain and swelling in conditions such as arthritis. Aspirin is known as a salicylate and a nonsteroidal anti-inflammatory drug (NSAID).
Question 7
1 / -0

Barbiturates are potent:

A
Hypnotics

B
Antimicrobials

C
Antacids

D
Antiseptics

E
Antiallergics

Solution

Barbiturates are derivatives of barbituric acids. These are potent hypnotics.
Question 8
1 / -0

Dettol consist of:

A
xylenol + terpeneol

B
chloroxylenol + terpineol

C
cresol + ethanol

D
none of the above

Solution

Chloroxylenol and α-terpineol are the main constituents of dettol.
Question 9
1 / -0

Which element has an oxide that is used as a food preservative?

A
Helium

B
Hydrogen

C
Iron

D
Sulfur

Solution

Sulfur dioxide is used as a gas or in the form of its sulphite, bisulphite and metabisulphite salts as a food preservative.

Hence, option D is correct.
Question 10
1 / -0

Soft soap are

A
Sodium salt

B
Calcium salt

C
magnesium salt

D
potassium salt

Solution

Softsoap is semi-liquid or easily soluble soap made by saponification with potassium hydroxide instead of the more typical sodium hydroxide. Hence option (D) is correct.

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Re-Attempt Weekly Quiz Competition

Chemistry in Everyday Life Test - 54

Result

Chemistry in Everyday Life Test - 54

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SHARING IS CARING

Question 1

If both assertion and reason are true and reason is the correct explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If both assertion and reason are false.

Solution

Question 2

Soap

Heavy metal

Gold

None

Solution

Question 3

Novestrol - Antifertility

Serotonine - Tranquilizer

zentac - antacid

none of these

Solution

Question 4

Grazing food chain

Grazing fish chain

Gross food chain

Green forest conservation

Solution

Question 5

Killing the germs

Reducing the rate of biochemical reactions

Destroying enzyme action

Sealing the food with a layer of ice

Solution

Question 6

Phenyl acetate

Methyl acetate

Acetyl salicylic acid

Salicylic acid

Solution

Question 7

Hypnotics

Antimicrobials

Antacids

Antiseptics

Antiallergics

Solution

Question 8

xylenol + terpeneol

chloroxylenol + terpineol

cresol + ethanol

none of the above

Solution

Question 9

Helium

Hydrogen

Iron

Sulfur

Solution

Question 10

Sodium salt

Calcium salt

magnesium salt

potassium salt

Solution

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