Chemistry in Everyday Life Test

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Chemistry in Everyday Life Test - 35

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Weekly Quiz Competition

Question 1
1 / -0

Chemically, detergent is:

A
sodium lauryl sulphate

B
sodium stearate

C
sodium carbonate

D
sodium acetate

Solution

Detergent is mixture of surfactant with cleansing properties. These are made of Alkyl benzene sulfonates like sodium lauryl sulphate. It produce more lather in hard water.
Question 2
1 / -0

A product obtained by mixing sodium hydroxide with vegetable oil is:

A
acid

B
base

C
soap

D
vinegar

Solution

When vegetable oil reacts with sodium hydroxide$$(NaOH)$$, it produces sodium salt of carboxylic acid(soap).
$$\implies Vegetable\ oil+NaOH\longrightarrow \underbrace {R-CO\overset {\circleddash}{O}Na}_{Soap}$$
Question 3
1 / -0

Which of the following is a use of $$Mg(OH)_2$$?

A
It is used in fire extinguisher as a foaming agent.

B
It is used in the preparation of fertilizers.

C
It is used in removing stains of grease from clothes.

D
It is used as an antacid.

Solution

$$Mg(OH)_2$$ is used as an antacid to neutralize the acidity in the stomach.
Question 4
1 / -0

Tranquilizers are also known as:

A
psychosomatic drugs

B
antipsychotic drugs

C
psychosystolic drugs

D
none of the above

Solution

Tranquilizers are the drugs which used to releive mental ailments.

These are also known as antipsychotic drugs as they act on the central nervous system.

Option B is correct.
Question 5
1 / -0

Which among the following detergents is non-ionic in character?

A
Sodium lauryl sulphate

B
Pentaerythrityl stearate

C
Cetyl trimethyl ammonium chloride

D
Sodium n-dodecyl benzene sulphonate

Solution

Non-ionic detergents are characterized by their uncharged, hydrophilic headgroups.
Typical non-ionic detergents are based on polyoxyethylene or a glycoside.

Pentaerythrityl stearate is a non-ionic detergent.

Sodium lauryl sulphate is an anionic detergent.

Cetyl trimethyl ammonium chloride is a cationic detergent.

SDS Sodium n-dodecyl benzene sulphonate is an anionic detergent.
Question 6
1 / -0

Paracetamol is:

A
methyl salicylate

B
phenyl salicylate

C
N-acetyl p-amino phenol

D
acetyl salicylic acid

Solution

N-acetyl-para-aminophenol, which is also known as acetaminophen in the US and paracetamol (from para-acetyl-amino-phenol) in the UK.

Hence, option C is correct.
Question 7
1 / -0

Vitamin C is:

A
Citric acid

B
Lactic acid

C
Paracetamol

D
Ascorbic acid

Solution

Vitamin C is ascorbic acid. It is important for our skin, bones, and connective tissue. It promotes healing and helps the body absorb iron.
Question 8
1 / -0

Potassium metabisulphite is a (an):

A
preservative

B
antioxidant

C
artificial sweetener

D
both (A) and (B)

Solution

Potassium metabisulphite, $$K_2 S_2 O_5$$, is a white crystalline solid with pungent odour of sulphur.

Potassium metabisulfite is sometimes added to lemon juice as a preservative.

It is used as an antimicrobial preservative antioxidant and bleaching agent in food.

Option D is correct.
Question 9
1 / -0

D-fructose is used for sweetening cold drinks but not hot ones because:

A
it is not a true carbohydrate

B
on heating it is converted into pyranose form

C
on heating it is converted into furanose form

D
on heating it gets decomposed

Solution

The D-fructose exists in two forms, pyranose and furanose forms, in equilibrium. These two forms interchange depending upon the temperature of the system.

The furanose form of fructose is less sweet than its pyranose form and when the temperature is increased, the equilibrium shifts to the furanose structure and this makes the solution less sweet.

Therefore, option C is correct.
Question 10
1 / -0

Cetryltrimethyl ammonium bromide is a popular:

A
anionic detergent

B
cationoic detergent

C
non-ionic detergent

D
sweetener

Solution

Cationic detergents are quarternary ammonium salts of amines with acetates, chlorides or bromides as anions. Cationic part possesses a long hydrocarbon chain and a positive charge on the nitrogen atom.

Hence, these are called cationic detergents. For example cetyltrimethyl ammonium bromide.

Therefore, option B is correct.

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Chemistry in Everyday Life Test - 35

Result

Chemistry in Everyday Life Test - 35

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SHARING IS CARING

Question 1

sodium lauryl sulphate

sodium stearate

sodium carbonate

sodium acetate

Solution

Question 2

acid

base

soap

vinegar

Solution

Question 3

It is used in fire extinguisher as a foaming agent.

It is used in the preparation of fertilizers.

It is used in removing stains of grease from clothes.

It is used as an antacid.

Solution

Question 4

psychosomatic drugs

antipsychotic drugs

psychosystolic drugs

none of the above

Solution

Question 5

Sodium lauryl sulphate

Pentaerythrityl stearate

Cetyl trimethyl ammonium chloride

Sodium n-dodecyl benzene sulphonate

Solution

Question 6

methyl salicylate

phenyl salicylate

N-acetyl p-amino phenol

acetyl salicylic acid

Solution

Question 7

Citric acid

Lactic acid

Paracetamol

Ascorbic acid

Solution

Question 8

preservative

antioxidant

artificial sweetener

both (A) and (B)

Solution

Question 9

it is not a true carbohydrate

on heating it is converted into pyranose form

on heating it is converted into furanose form

on heating it gets decomposed

Solution

Question 10

anionic detergent

cationoic detergent

non-ionic detergent

sweetener

Solution

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