The correct match between items of List- I and List- II is: List I List II (A) Phenelzine (P) Pyrimidine (B) Chloroxylenol (Q) Furan (C) Uracil (R) Hydrazine (D) Rantidine (S) Phenol

(A)- (R); (B)- (S); (C)- (P); (D)-(Q)

(A)- (S); (B)- (R); (C)- (P); (D)-(Q)

(A)- (R); (B)- (S); (C)- (Q); (D)-(P)

(A)- (S); (B)- (R); (C)- (Q); (D)-(P)

Choose the correct option for a suitable match between Column I and Column II. Column I Column II (P) Artificial Sweetener (L) Caramel (Q) Food Preservative (M) Ascorbic acid (R) Antioxidants (N) Alitame (S) Food colours (O) Sorbic acid

P$$\rightarrow$$ N, Q$$\rightarrow$$ O, R$$\rightarrow$$ M, S$$\rightarrow$$L

P$$\rightarrow$$N, Q$$\rightarrow$$ O, R$$\rightarrow$$ L, S$$\rightarrow$$ M

P$$\rightarrow$$ N,Q$$\rightarrow$$ M, R$$\rightarrow$$ O, S$$\rightarrow$$ L

P$$\rightarrow$$ L, Q$$\rightarrow$$ O, R$$\rightarrow$$ M,S$$\rightarrow$$ N

MCQ Questions for Class 12 Engineering Chemistry Chemistry In Everyday Life Quiz 11

Which of the following is a hypnotic drug

0%
Luminal
0%
Salol
0%
Catechol
0%
Chemisol

An example of a psychedelic agent is

0%
DNA
0%
LSD
0%
DDT
0%
TNT

Which of the following is not an antiseptic drug

0%
Iodoform
0%
Dettol
0%
Gammexane
0%
Genatian violet

Which of the following is a hallucinogenic drug?

0%
Methedrine
0%
Calmpose
0%
LSD
0%
Seconal

Which of the following as an antioxidant in edible oils

0%
Vitamine $B$
0%
Vitamine $C$
0%
Vitamine $D$
0%
Vitamine $E$

Sulphaguadine is used for

0%
Dysentery
0%
Urinary infections
0%
Antiseptic
0%
Antipyretic

Which statement is false

0%
Some disinfectants can be used antiseptics at low concentration
0%
Sulphadiazine is a synthetic antibacterial
0%
Ampicillin is a natural antibiotic
0%
None of these

Which of the following is an antidiabatic drug?

0%
Insulin
0%
Penicilin
0%
Chloroquine
0%
Aspirin

Which is correct about vanillin

0%
A flavouring agent having vanila flavour
0%
o - hydroxy - m - methoxy - benzaldehyde
0%
A food additive
0%
All of these

Substance used for the preservation of coloured fruit juices is

0%
Benzene
0%
Benzoic acid
0%
Phenol
0%
Sodium meta bisulphite

Which of the following substances is an antacid?

0%
$NaCl$
0%
$Mg(OH)_{2}$
0%
$HCl$
0%
$H_{2}SO_{4}$

Explanation

$Mg(OH)_{2}$

An antacidis a basic substance which is taken for the remedy of acidity.

$Mg(OH)_{2}$ also called milk of magnesia is a commonly used antacid.

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.

0%
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
0%
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
0%
Both Assertion and Reason are incorrect
0%
Assertion is correct but Reason is incorrect
0%
Assertion is incorrect but Reason is correct

Anionic surfactants are:

0%
$C_{15}H_{31}COONa$
0%
0%
0%
$C_nH_{2n+1}(OCH_2CH_2)_x\cdot OH$

2-acetoxybenzoic acid is used as:

0%
antiseptic
0%
antidepressant
0%
antimalarial
0%
antipyretic

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

0%
Aspartame
0%
Saccharin
0%
Sucralose
0%
Alitame

Explanation

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.

The correct statements for orthoboric acid is/are:

0%
it behave as a weak acid in water due to self ionisation.
0%
acidity of its aqueous solution increase upon addition of ethylene glycol.
0%
both (A) and (B).
0%
None of these.

Reaction involved in saponification process is

$CH_{3} COO C_{2} H_{5} \xrightarrow{NaOH} CH_{3} COO Na + C_{2} H_{5}OH$

0%
True
0%
False

Explanation

Esters can be cleaved back into a carboxylic acid and an alcohol by reaction with water and a base. The reaction is called a saponification from the Latin sapo which means soap. The name comes from the fact that soap used to be made by the ester hydrolysis of fats. Due to the basic conditions, a carboxylate ion is made rather than a carboxylic acid. The reaction can be represented as:

$CH_{3}COOC_{2}H_{5} \xrightarrow[]{NaOH} CH_{3}COONa + C_{2}H_{5}OH$

Veronal and luminal are derivatives of barbituric acid, which are:

0%
tranquilizers
0%
non-narcotic analgesic
0%
antiallergic drugs
0%
None of the above

Soaps are sodium salts of fatty acids, RCOONa; e.g.

$C_{17}H_{35}COO^-Na^+$ . It gives an insoluble precipitate / layer with

0%
$Ca^{2+}$ (aq)
0%
$Mg^{2+}$ (aq)
0%
HCl (aq)
0%
All of these

Explanation

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,

$2CH_3(CH_2)_{16}COO^-Na^+(aq) + Ca^{2+}(aq) \rightarrow [CH_3(CH_2)_{16}COO^-]_2Ca^{2+}(s) + 2Na^+(aq)$

Aspirin is an acetylation product of:

0%
p-dihyroxybenzene
0%
o-hydroxybenzoic acid
0%
o-dihydroxy benzene
0%
m-hydroxybenzoic acid

Assertion : Enzymes have active sites that hold substrate molecule for a chemical reaction
Reason : Drugs compete with natural substrate by attaching covalently to the active site of enzyme

0%
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
0%
Both Assertion and Reason are correct and Reason is NOT the correct explanation for Assertion
0%
Both Assertion and Reason are incorrect
0%
Assertion is correct but Reason is incorrect
0%
Assertion is incorrect but Reason is correct
0%
Answer reqiured

Explanation

Option (B) is correct.

$A$ : Enzymes have active sites that hold substrate molecule for a chemical reaction. The substrate is held at the active site in a suitable and right position, for effective attack of reagent. This can be explained by lock and key model. The forces between the active site and substrate can be covalent bond, hydrogen bond, van der waal's forces etc.

$R$ : Drugs compete with natural substrate by attaching covalently to the active site of enzyme. Many drugs acts as enzyme inhibitors. Inhibition by particular chemicals can be a source of insight into the mechanism of enzyme action: specific inhibitors can often be used to identify residues critical for catalysis.

Assertion : Chemical messengers are chemicals that enable communication of message between two neurons or between neurons and muscles.
Reason : Chemicals enter the cell through receptor.

0%
Both Assertion and Reason are incorrect.
0%
Both Assertion and Reason are correct.
0%
Both Assertion and Reason are correct and Reason is the incorrect explanation for Assertion.
0%
Assertion is correct but Reason is incorrect.
0%
non of these
0%
A and B

____ are proteins that are crucial to body's communication process. These are present in cell membranes but a small active part of it projects out of the membrane.

0%
Lipids
0%
Enzymes
0%
Synapses
0%
Receptors

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.

0%
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
0%
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
0%
Both Assertion and Reason are incorrect.
0%
Assertion is correct but Reason is incorrect.
0%
Assertion is incorrect but Reason is correct.

Butylated hydroxy toluene as a food additive acts as:

0%
antioxidant
0%
flavouring agent
0%
coloring agent
0%
emulsifier

Explanation

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

$\text{A.}$

Identify the structure of phenacetin.

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

0%
A- II, B- IV, C- I, D- III
0%
A- II, B- IV, C- V, D- III
0%
A- II, B- III, C- V D- I
0%
A- II, B- I C- III D- IV

4-hydroxyacetanilide belongs to which of the following?

0%
Antipyretic
0%
Antacid
0%
Antiseptic
0%
Antihistamine

Which of the following is an anionic detergent?

0%
Sodium lauryl sulphate
0%
Cetyltrimethyl ammonium bromide
0%
Glyceryl oleate
0%
Sodium stearate

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

0%
$HN{ O }_{ 3 },{ { H }_{ 2 } }/{ Pd },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$
0%
${ H }_{ 2 }S{ O }_{ 4 },{ { H }_{ 2 } }/{ Pd },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$
0%
${ C }_{ 6 }{ H }_{ 5 }{ N }_{ 2 }Cl,{ Sn{ Cl }_{ 2 } }/{ HCl },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$
0%
${ { Br }_{ 2 } }/{ { H }_{ 2 }O },{ Zn }/{ HCl },{ \left( C{ H }_{ 3 }CO \right) }_{ 2 }O$

$X + Y \xrightarrow[]{H^+} Aspirin + H_3CCOOH$

Identify

$X$ and

$Y$ from the following options:

The reason for "drug induced poisoning" is:

0%
binding at the allosteric sites of the enzyme
0%
binding irreversibly to the active site of the enzyme
0%
binding reversibly at the active site of the enzyme
0%
bringing conformational change in the binding site of the enzyme

Glaucoma is treated by which of the following?

0%
androgenic drug
0%
androgenic blocking drug
0%
cholinergic drug
0%
anticholinergic drug

The correct match between items of List- I and List- II is:

List I	List II
(A) Phenelzine	(P) Pyrimidine
(B) Chloroxylenol	(Q) Furan
(C) Uracil	(R) Hydrazine
(D) Rantidine	(S) Phenol

0%
(A)- (S); (B)- (R); (C)- (P); (D)-(Q)
0%
(A)- (R); (B)- (S); (C)- (P); (D)-(Q)
0%
(A)- (R); (B)- (S); (C)- (Q); (D)-(P)
0%
(A)- (S); (B)- (R); (C)- (Q); (D)-(P)

Among the

$\alpha$ -amino acids- threonine, tyrosine, methionine, arginine and tryptophan, those which contain an aromatic group in their side chain are:

0%
Theronine and arginine
0%
Tyrosine and tryptophan
0%
Methionine and tyrosine
0%
Arginine and tryptophan

_________ is a potent vasodilator.

0%
Histamine
0%
Serotonin
0%
Codeine
0%
Cimetidine

Among the following, which one acts as a food preservative?

0%
Aspartame
0%
Aspirin
0%
Sodium Benzoate
0%
Paracetamol

Explanation

Sodium benzoate is a substance which has the chemical formula

$C_6H_5COONa$ . It is a widely used food preservative.

Hence, option C is correct.

Cetyltrimethyl ammonium bromide is a popular:

0%
anionic detergent
0%
cationic detergent
0%
sweetener
0%
non-ionic detergent

Important function of the drug with the following structure is:

0%
Reducing fever
0%
Relieving pain
0%
Anti blood clotting action
0%
All of these

Cetyl trimethyl ammonium chloride is an example of

0%
anionic detergent
0%
cationic detergent
0%
non-ionic detergent
0%
Soap

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:-

0%
$90 \ J$
0%
$30 \ J$
0%
$900 \ J$
0%
$10 \ J$

The drug used for the treatment of throat infection is

0%
Quinine
0%
Piperazine
0%
Sulpha drug like sulphanilamide
0%
Isonicotin hydrazide

Choose the correct option for a suitable match between Column I and Column II.

Column I	Column II
(P) Artificial Sweetener	(L) Caramel
(Q) Food Preservative	(M) Ascorbic acid
(R) Antioxidants	(N) Alitame
(S) Food colours	(O) Sorbic acid

0%
P $\rightarrow$ N, Q $\rightarrow$ O, R $\rightarrow$ L, S $\rightarrow$ M
0%
P $\rightarrow$ N,Q $\rightarrow$ M, R $\rightarrow$ O, S $\rightarrow$ L
0%
P $\rightarrow$ N, Q $\rightarrow$ O, R $\rightarrow$ M, S $\rightarrow$ L
0%
P $\rightarrow$ L, Q $\rightarrow$ O, R $\rightarrow$ M,S $\rightarrow$ N

What is the problem faced while using alitame as artificial sweetener?

0%
It decomposes when added to the food items.
0%
It provides a huge number of calories to the food.
0%
It is difficult to control the sweetness of food while using it.
0%
It increases the volume of the contents to a large extent.

Examples of three detergents are given below. Mark the correct statements following the examples.

0%
I and II are non-diodegradable detergents and III is biodegradable.
0%
I and II are biodegradable detergents and III is non-biodegradable.
0%
I, II and III are non-biodegradable detergents.
0%
I is biodegradable and II, III are non-biogegradable.

The following compound is used as

0%
An anti-inflammatory coompound
0%
Analgesic
0%
Hypnotic
0%
Antiseptic

Hydrolysis of

$NH_{4}Cl$ is called-

0%
Catoionic
0%
Anionic
0%
Cationic and anionic both
0%
None of these

Correct statement among the following is:

0%
Antihistamine is potent vasodilator.
0%
Antaigonists mimic the natural messenger by switching on receptor.
0%
Chlordiazepoxide suitable for relieving tension.
0%
Soframycin is brand spectrum antibiotic.

The role of phosphate in detergent powder is to :

0%
Control $pH$ level of the detergent water mixture
0%
Remove $Ca^{2+}$ and $Mg^{2+}$ ions from the water that causes the hardness of water
0%
Provides whiteness to the fabrics
0%
Form solid detergent as phosphate-less detergents are liquid are in nature.

Chloroquine is an example of?

0%
Antipyretic
0%
Antimalarial
0%
Antibacterial
0%
None of the above

CBSE Questions for Class 12 Engineering Chemistry Chemistry In Everyday Life Quiz 11 - MCQExams.com

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Practice Class 12 Engineering Chemistry Quiz Questions and Answers

CBSE Questions for Class 12 Engineering Chemistry Chemistry In Everyday Life Quiz 11 - MCQExams.com

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Practice Class 12 Engineering Chemistry Quiz Questions and Answers

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