Chemistry in Everyday Life Test

Result

Chemistry in Everyday Life Test - 59

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Assertion : Penicillin (G) is an antihistamine.

Reason: Penicillin (G) is effective against gram-positive bacteria.

Read the above assertion and reason and choose the correct option regarding it.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

C
Both Assertion and Reason are incorrect

D
Assertion is correct but Reason is incorrect

E
Assertion is incorrect but Reason is correct

Solution

The assertion that Penicillin (G) is an antihistamine is incorrect. Penicillin (G) is an antibiotic. It is a narrow spectrum antibiotic. Hence it effective against both gram positive as well as Gram negative bacteria. Therefore, the Reason is correct.
Hence, option E is the right answer.
Question 2
1 / -0

The artificial sweetener containing chlorine that has the appearance and taste as that of sugar and is stable at cooking temperature is:

A
Aspartame

B
Saccharin

C
Sucralose

D
Alitame

Solution

The artificial sweetener containing chlorine that has the appearance and taste as that of sugar and is stable at cooking temperature is sucralose.

Sucralose is derived from sugar through a multi-step patented manufacturing process that selectively substitutes three atoms of chlorine for three hydroxyl groups on the sugar molecule. This change produces a sweetener that has no calories, yet is 600 times sweeter than sucrose.

Sucralose tastes like sugar. Its chemical formula is $$C_{12}H_{19}Cl_3O_8$$.

Hence, option $$C$$ is correct.
Question 3
1 / -0

2-acetoxybenzoic acid is used as:

A
antiseptic

B
antidepressant

C
antimalarial

D
antipyretic

Solution

2-acetoxybenzoic acid is IUPAC name of Aspirin. Aspirin acts as antipyretic, which is used to reduce body temperature.
Question 4
1 / -0

Soaps are sodium salts of fatty acids, RCOONa; e.g. $$C_{17}H_{35}COO^-Na^+$$. It gives an insoluble precipitate / layer with

A
$$Ca^{2+}$$ (aq)

B
$$Mg^{2+}$$ (aq)

C
HCl (aq)

D
All of these
Solution
Soaps are sodium salts of fatty acids. It gives an insoluble precipitate/layer with Calcium, Magnesium ions. It also gives an insoluble layer with HCl acid.

As a cleaning agent, soap suffers from two main drawbacks:

It does not function well in acidic solutions because of the formation of insoluble fatty acid
eg, $$CH_3(CH_2)_{16}COO^-Na^+(aq) + HCl(aq) \rightarrow CH_3(CH_2)_{16}COOH(s) + Na^+(aq) + Cl^-(aq)$$
It forms insoluble precipitates with $$Ca^{2+}$$ and$$ Mg^{2+}$$ ions present in hard water, forming a scum
eg, $$2CH_3(CH_2)_{16}COO^-Na^+(aq) + Ca^{2+}(aq) \rightarrow [CH_3(CH_2)_{16}COO^-]_2Ca^{2+}(s) + 2Na^+(aq)$$
Question 5
1 / -0

Aspirin is an acetylation product of:

A
p-dihyroxybenzene

B
o-hydroxybenzoic acid

C
o-dihydroxy benzene

D
m-hydroxybenzoic acid

Solution

Aspirin (acetyl salicylic acid) is an acetylation product of o-hydroxybenzoic acid (salicylic acid).
Question 6
1 / -0

Butylated hydroxy toluene as a food additive acts as:

A
antioxidant

B
flavouring agent

C
coloring agent

D
emulsifier

Solution

Butylated hydroxytoluene (BHT), also known as dibutyl hydroxytoluene, is a lipophilic organic compound, chemically a derivative of phenol, that is useful for its antioxidant properties.

U.S. regulations allow small amounts to be used as a food additive. In addition to this use, BHT is widely used to prevent oxidation in fluids (e.g. fuel, oil) and other materials where free radicals must be controlled.

Hence, the correct option is $$\text{A.}$$
Question 7
1 / -0

Assertion: Artificial sweeteners are added to the food to control the intake of calories.

Reason: Most of the artificial sweeteners are inert and do not metabolise in the body.

Read the above assertion and reason and choose the correct option regarding it.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

C
Both Assertion and Reason are incorrect.

D
Assertion is correct but Reason is incorrect.

E
Assertion is incorrect but Reason is correct.

Solution

Artificial sweeteners are added to the food to control the intake of calories.
Most of the artificial sweeteners are inert and do not metabolise in the body.

An example includes saccharine and its salts which are life savers for countless diabetics and is of great value to people who need to control the intake of calories.

Thus, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Question 8
1 / -0

Identify Phenacetin from the following:

A

B

C

D

Solution

Phenacetin is N-(4-ethoxyphenyl)acetamide.

Phenacetin (or acetophenetidin) is a pain-relieving and fever-reducing drug, which was widely used between its introduction in 1887 and the 1983 ban imposed by the U.S. Food and Drug Administration.

Hence, option D is correct.
Question 9
1 / -0

Which of the following sets of reactants is used for preparation of paracetamol from phenol?

A
$$HN{ O }_{ 3 },{ { H }_{ 2 } }/{ Pd },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$$

B
$${ H }_{ 2 }S{ O }_{ 4 },{ { H }_{ 2 } }/{ Pd },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$$

C
$${ C }_{ 6 }{ H }_{ 5 }{ N }_{ 2 }Cl,{ Sn{ Cl }_{ 2 } }/{ HCl },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$$

D
$${ { Br }_{ 2 } }/{ { H }_{ 2 }O },{ Zn }/{ HCl },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$$

Solution

The preparation method of paracetamol is as shown.
Question 10
1 / -0

Match the following.
List - I List - II
A Sucralose I Antioxidant
B Iodine II Artificial sweetener
C Sodium benzoate III Antacid
D Ranitidine IV Antiseptic
V Food preservative

A
A- II, B- IV, C- I, D- III

B
A- II, B- IV, C- V, D- III

C
A- II, B- III, C- V D- I

D
A- II, B- I C- III D- IV

Solution

A: Sucralose is a non-nutritive artificial sweetener. The majority of ingested sucralose is not broken down by the body, so it is non-caloric.
B: Iodine is used as an antiseptic. Iodine in ethanol, or iodine and sodium iodide in a mixture of ethanol and water is called as tincture of iodine.
C: Sodium benzoate is a sodium salt that occurs naturally in some foods, but is also widely used as a chemical preservative. It is used mainly as a food preservative
D: Ranitidine, sold under the trade name Zantac among others, is a medication that decreases stomach acid production. It is commonly used in the treatment of peptic ulcer disease.
A-II, B- IV, C- V, D- III