CBSE Questions for Class 12 Engineering Chemistry Chemistry In Everyday Life Quiz 9 - MCQExams.com

Identify the hydrophilic and hydrophobic parts in the following non-ionic detergent present in liquid detergents and wetting agents.
937167_54ef20e8065347689bc4844dd13f3a44.png
Which of the following is not a correct statement?
  • Transparent soaps are made by dissolving the soap in ethanol and then evaporating excess solvent.
  • Soaps that float in water are made by beating tiny air bubbles before their hardening.
  • Medicated soaps contain alcohol to prevent rapid drying.
  • Potassium soaps are soft to the skin than sodium soaps.
The pair whose both species are used in antacid medicinal preparation is:
  • $$NaHCO_3$$ nad $$Mg(OH)_2$$
  • $$Na_2CO_3$$ and $$Ca(HCO_3)_2$$
  • $$Ca(HCO_3)_2$$ and $$Mg(OH)_2$$
  • $$Ca(OH)_2$$ and $$NaHCO_3$$
The main difference between bathing and washing soap is:
  • bathing soaps are potassium salts of fatty acids while washing soaps are sodium salts of fatty acids.
  • bathing soaps are sodium salts of fatty acids while washing soaps are potassium salts of fatty acids.
  • bathing soaps are cationic in nature while washing soaps are anionic.
  • bathing soaps are calcium salts of fatty acids while washing soaps are magnesium salts of fatty acids.
Which of the following is an example of non-biodegradable detergent?
  • $$CH_3-(CH_2)_{10}-CH_2-OSO_3Na$$
Which of the following is not a surfactant?
  • $$CH_3-(CH_2)_{15} - N^+(CH_3)_3Br^-$$
  • $$CH_3-(CH_2)_{14}-CH_2NH_2$$
  • $$CH_3-(CH_2)_{16}-CH_2OS{ O }_2^-Na^+$$
  • $$OHC- (CH_2)_{14} -CH_2- CO{ O }^-Na^+$$
Which of the following is not a true statement about detergents?
  • Anionic detergents are sodium salts of sulphonated long chain alcohols or hydrocarbons.
  • Cationic detergents are quarternary ammonium salts of amines with acetates, chlorides or bromides as ions.
  • Non-ionic detergents do not contain any ion in their constitution.
  • Detergents containing branched hydrocarbon chains are biodegradable.
For the preparation of a detergent 'P' from benzene, the following steps are involved:
These steps should be in the sequence of:
937199_1984c945d3a644a1bae285ab36eb4748.png
  • $$I, II, III$$
  • $$II, I, III$$
  • $$II, III, I$$
  • $$I, III, II$$
The final product 'Y' is medicine. Which of the following is incorrect regarding 'Y'?
937189_84f4298f74c5437e9d6ad7f567107dec.PNG
  • It has analgesic as well as antipyretic properties.
  • It helps to prevent heart attacks.
  • It has anti-blood clotting action.
  • It suppresses the gastric anomalies.
Which of the following is not a food additive?
  • Preservatives
  • Sweetening agents
  • Flavours
  • Oxidants
Which of the following chemicals can be added for sweetening of food items at cooking temperature and does not provide calories?
  • Sucrose
  • Glucose
  • Aspartame
  • Sucralose
Which of the following is an example of liquid dishwashing detergent? 
  • $$CH_3(CH_2)_{10}-CH_2OSO^-_3Na^+$$
  • $$\left[CH_3(CH_2)_{15} - \underset{\displaystyle {CH_3}}{\underset{|}{\overset{\displaystyle {CH_3}}{\overset{|}{N}}}} - CH_3 \right]^+ Br^-$$
The most useful classification of drugs for medicinal chemists is _______. 
  • on the basis of chemical structure
  • on the basis of drug action
  • on the basis of molecular targets
  • on the basis of pharmacological effect
The compound that causes a general antidepressant action on the central nervous system belongs to the class of:
  • analgasics
  • tranquilizers
  • nacrotic analgesics
  • antihistamines
Salvarsan is containing drug which was first used for the treatment of ____.
  • Syphilis
  • Typhoid
  • Meningitis
  • Dysentry
Compound which is added to soap to impart antiseptic properties is _____.
  • sodium laurylsulphate
  • sodium dodecylbenzenesulphonate
  • rosin
  • bithional
Salt is used in our food because:
  • it makes the food tasty
  • we sweat and lose salt
  • it helps in production of hydrochloric acid required to digest the food
  • it makes water absorb food particles better
The anti diabetic drug which also has anorectic effect is
  • Glipizide
  • Chlorpropamide
  • Gliclazide
  • Metformin
Number of $$\sigma$$ and $$pi$$ bonds in acetanilide is _________ and ___________ respectively.
  • $$19, 4$$
  • $$16, 4$$
  • $$20, 3$$
  • $$19, 3$$
The antidiabetic drug which is considered as a postprandial hyperglycaemic regulator is:
  • rosiglitazone
  • piaglitazone
  • repaglinide
  • tolbutamide
Which of the following pair is not proper?
  • Food preservative - Sodium meta bi-sulphate
  • Anti oxidant - Sorbic acid
  • Food colour - Arneto
  • Artificial sweetening agent - Alitame
Which of the following is used as a food preservative?
  • Citric acid
  • Sucralose
  • Salts of sorbic acid
  • Ascorbic acid
Which of the following is known as invert soap?
  • Pentaerythritol monostearate
  • Trimethyl stearyl ammonium bromide
  • Ethoxylated nonphenol
  • Sodium stearyl sulphate

Histamine is an organic nitrogenous compound involved in local immune response as well as regulating physiological function in the gut and acting as neuro transmitter. The drug used as:
1025360_3728525746db41519e2c9476d7bb77ac.png
  • vasodilator
  • analgesics
  • antacid
  • antiseptic
Which of the following substance is an antacid?
  • $$NaCl$$
  • $$Mg(OH)_2$$
  • $$HCl$$
  • $$H_2SO_4$$
Haldol is a tranquilizer.
  • True
  • False
Which of the following is an anionic detergent?
  • Glyceryl oleate
  • Sodium stearate
  • Sodium lauryl sulphate
  • Cetyltrimethyl ammonium bromide
Which of the following is not used as an antacid ? 
  • Magnesium hydroxide
  • Sodium carbonate
  • Sodium bicarbonate
  • Aluminium phosphate
Which of the following is used for preservation of biological substances and food materials?
  • Liquid ammonia
  • Liquid dinitrogen
  • Liquid sulphur dioxide
  • Carbon dioxide
Terfenadine is commonly used as a/an ?
  • Tranquillizer
  • Antithistamine
  • Antimictobial
  • Antifortility drug
Which of the following is used as a preservative to protect processed food?
  • Sodium sulphate
  • Saccharin
  • Sucralose
  • Sodium metabisulphite
Milk can be preserved by adding a few drops of:
  • formic acid solution
  • formaldehyde solution
  • acetic acid solution
  • acetaldehyde solution
Identify the correct statement.
  • Soaps are better than detergents in hard water
  • Soaps are salts of alkyl benzene sulphonic acids
  • Detergents clean well even in acidic medium
  • The non ionic hydrocarbon end of soap has property to attract water
Antidepresent drug among the following is:
  • phenelzine
  • promethazine
  • naproxen
  • cimetidine
The safest and the most common alternative of sugar is:
  • glucose
  • aspartame
  • saccharine
  • cyclodextrin
Cationic surfactant is:
  • $${ C }_{ 17 }{ H }_{ 35 }{ COONa }$$
  • $${ C }_{ 16 }{ H }_{ 33 }N({ CH }_{ 3 })_{ 3 }Cl$$
  • None of the above
Which of the following vitamins are water insoluble:
  • B6
  • B12
  • C
  • D
Which of the following is molecular disease?
  • cancer
  • sugar
  • B.P
  • Allergy
Which of the following soap / detergents is least biodegradable ?
  • $${ C }_{ 17 }{ H }_{ 35 }COONa$$
  • $${ CH }_{ 3 }-{ { (CH }_{ 2 }) }_{ 11 }{ OSO }_{ 2 }Na$$
$$CH_3-C\equiv CH\xrightarrow [ dil.\quad { H }_{ 2 }SO_{ 4 } ]{ ({ HgSO }_{ 4 }) } (B)\xrightarrow [ { CHCI }_{ 3 } ]{ (NaOH) } (C)$$

Compound (C) can be used as______.
  • an anaesthetic
  • an insecticide
  • a solvent
  • a hypnotic
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:
  • 0.56atm
  • 0.056atm
  • 5.525atm
  • { 5.525\times 10 }^{ -3 }atm
Which of the follwoing is not used as food preservative?
  • sodium benzoate
  • sodium sulphate
  • salts of sorbic acid
  • acetyl salicylic acid
Mixture  of chloroxylenol and terpineol acts as:
  • antiseptic
  • antipyretic
  • antibiotic
  • analgesic.
Structurally biodegradable detergent should contain:
  • Normal alkyl chain
  • Branched alkyl chain
  • Phenyl side chain
  • Cyclohexyl side chain
Aspirine is a an:
  • Antiseptic
  • Antipyretic
  • Antimalarial
  • Narcotic
Which of the following drug is tranquillizer and sedative
  • Sulphadiazene
  • Papaverine
  • Equanil
  • Mescaline
_________ is/are a major component of shampoos and soaps.
  • $$Li$$
  • $$Na$$
  • $$K$$
  • $$Fr$$
Arrange the following in decreasing order of the sweetening capacity.
(I) Saccharin
(II) Aspartame
(III) Alitame 
  • I > II > III
  • III > II > I
  • III > I > II
  • II > I > III
Out of following which compound is used for preservation of food?
  • $$NaCl$$
  • $$HgCl_{2}$$
  • $$ZnCl_{2}$$
  • $$CaCl_{2}$$
State true or false.

Soft soaps are potassium salts of higher fatty acids. 
  • True
  • False
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