CBSE Questions for Class 12 Engineering Chemistry Chemistry In Everyday Life Quiz 7 - MCQExams.com

Surfactants, having both cationic and anionic centres attached to the same molecule, are called:
  • cationic surfactant
  • anionic surfactant
  • zwitter-ionic surfactants
  • neutral surfactants
The chief source(s) of oils used to make soap is/are:
  • petroleum products
  • coal and coke
  • plants and animals
  • none of the above
Which statement about aspirin is not true?
  • Aspirin belongs to narcotic analgesics
  • It helps in reliving pain
  • It has anti-blood clotting action
  • It is neurologically active drug.
Saccharin, an artificial sweetner is manufactured from :
  • cellulose
  • toluene
  • cyclohexane
  • starch
Butylated hydroxy toluene as a food additive acts as :
  • flavouring agent
  • emulsifier
  • antioxidant
  • colouring agent
Equanil is a/an:
  • tranqulizer
  • antifertility drug
  • artificial sweetner
  • antihistaamine
Which of the following is employed as a tranquilizer?
  • Equanil
  • Naproxen
  • Tetracyclin
  • Dettol
Which of the following represents a detergent?
  • Sodium salt of alkyl hydrogen sulphate of alcohol or alkyl benzene sulphonate
  • Sodium salt of long chain carboxylic acid
  • Potassium salt of long chain carboxylic acid
  • All of these
The number of disulphide linkages present in insulin are:
  • $$4$$
  • $$3$$
  • $$2$$
  • $$1$$
Which of the following is the structure of Aspirin?
Aspirin has a degree of unsaturation of:
  • $$4$$
  • $$5$$
  • $$6$$
  • $$7$$
Penicillin is effective against gram-positive as well as gram-negative bacteria. 
  • True
  • False
Substances which are used to bring down the temperature in high fever condition, are called:
  • antiseptics
  • pyretics
  • antibiotics
  • antipyretics
Which of the following is not an antihistamine?
  • Brompheniramine
  • Terfenadine
  • Iproniazid
  • Ranitidine
The compound that causes general depressant action on the central nervous system belongs to the class of:
  • tranquilizers
  • analgesics
  • antihistamines
  • narcotic analgesics
The stiochiometry of the following reaction is:

$$K_{2}S_{2}O_{8}(aq) + 2KI(aq)\rightarrow 2K_{2}SO_{4}(aq) + I_{2}(aq)$$
  • $$2 : 1$$
  • $$1 : 2$$
  • $$2 : 2$$
  • $$1 : 3$$
Antiseptics and disinfectants either kill or prevent growth of microorganisms. Which of the following statements is not true?
  • Chlorine and Iodine are used as strong disinfectants
  • Dilute solutions of Boric acid and Hydrogen Peroxide are strong antiseptics
  • Disinfectants harm the living tissues
  • A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant
Which one of the following drugs prevents the interaction of histamine with its receptor?
  • Antihistamines
  • Analgesics
  • Antibiotics
  • Disinfectants
Which one of the following is employed as Antihistamine? 
  • Omeprazole
  • Chloramphenicol
  • Diphenhydramine
  • Norethindrone
Which of the following soap/detergent has least biodegradability?
  • $$CH_{3}-(CH_{2})_{11} - OSO_{2}Na$$
  • $$C_{17}H_{35} - COONa$$
Phenelzine is used as an:
  • analgesic
  • antiseptic
  • antipyretic
  • antidepressant
Antacids are used:
  • to produce acid in the stomach
  • to produce water in the stomach
  • to neutralise the excess base in the stomach
  • to neutralise the excess acid in the stomach
The yellow in egg yolk is a coloring caused by:
  • An FD & C dye added to the egg.
  • A carotenoid
  • An anthocyanin
  • Natural means..the fat is just yellow.
Dispersed dye was originally developed for the dyeing of cellulose acetate,
and are water-insoluble this dye is mainly used to dye:
  • nylon
  • polyster
  • both A and B
  • wool
The common raw material used in the preparation of soap and detergent is:
  • sulphuric acid
  • sodium hydroxide
  • stearic acid
  • long chain hydrocarbons
Antispasmodics are a group (class) of medicines that can help to control some symptoms that arise from _____________ part of the human body especially.
  • intestine
  • lungs
  • kidney
  • head

Reactive dyes utilize a _________ attached to a substituent that is capable of directly reacting with the fibre substrate.
  • chromophore
  • auxochrome
  • chlorophyll
  • none of the above
Azoic dyeing is a technique in which an insoluble ..................... compound dye is produced directly onto the fiber.
  • azo
  • sulphur containing
  • carbonyl
  • carboxylic acid
Cisplatin compound is used in the treatment of:
  • malaria
  • cancer
  • AIDS
  • yellow fever
While studying the saponification reaction, what do you observe when you mix an equal amount of colourless vegetable oil and 20% aqueous solution of $$NaOH$$ in a beaker?
  • The colour of the mixture has become dark brown
  • A brisk effervescence is taking place in the beaker
  • The outer surface of the beaker has become hot
  • The outer surface of the beaker has become cold
Which of the following functional groups constitutes the formation of detergent?
  • $$SO_3Na$$
  • $$COONa$$
  • $$COOH$$
  • $$OH$$
Which among the following is a tranquilizer?
  • Aspirin
  • Valium
  • Penicillin
  • Sulphanilamide
Further growth of cancerous cells in the body is arrested by:
  • electrotherapy
  • physiotherapy
  • chemotherapy
  • psychotherapy
Parkinson's disease is linked to abnormalities in the levels of dopamine in the body. The structure of dopamine is:
Antiseptic Chloroxylenol is:
  • 4-chloro-3, 5-dimethyl phenol
  • 3-chloro-4, 5-dimethyl phenol
  • 4-chloro-2, 5-dimethyl phenol
  • 5-chloro-3, 4-dimethyl phenol
Examples of Surfactants among the following are:
  • sulfonates
  • fatty acids
  • alkaline oxides
  • aryl chlorides
Compounds that lowers the surface tension between two liquids or a liquid and a solid are called surfactants.
  • True
  • False
State whether the given statement is true or false.

Statement: There are four categories among which various surfactants are divided. They are
Non-ionic Surfactant
Anionic Surfactant
Cationic Surfactant
Zwitterionic surfactants
  • True
  • False
One of the most widely used drug in medicine, iodex is?
  • Ethyl salicylate
  • Methyl salicylate
  • O-hydroxy benzoic acid
  • Acetyl salicylic acid
We can use soap to check the hardness of water.
  • True
  • False
A sample of coconut oil weighing $$1.573\ g$$ is mixed with $$25\ mL$$ of $$0.4210\ M\ KOH$$ is used in saponification of coconut oil. After the saponification is complete, $$8.46\ mL$$ of $$0.2732\ M\ H_{2}SO_{4}$$ is required to neutralize excess $$KOH$$. The saponification number of peanut oil is:
  • $$209.6$$
  • $$98.9$$
  • $$108.9$$
  • $$218.9$$
Sodium alkyl benzene sulphonate is used as:
  • Soap
  • Fertilizer
  • Detergent
  • Pesticide
Iodised salt prevents __________.
  • TB
  • Anaemia
  • Goitre
  • Beri-beri
A peptide hormone is:
  • estrone
  • testosterone
  • insulin
  • corticoid
Which type of chemical substances is disparlure?
  • Detergent
  • Antioxidant
  • Pheromones
  • Preservative
To prevent food from spoilage by microorganism, which substance is used ?
  • Amato
  • Aspartame
  • Salt of sorbic acid
  • Tetrazine
Which of the following is useful as a food preservative ?
  • Sucralose
  • Salts of sorbic acid
  • Ascorbic acid
  • Citric acid
Tranquillisers are the substances used for treatment of:
  • cancer
  • AIDS
  • mental diseases
  • physical diorders
Select the detergent that is used to prepare cosmetics.
  • DDBS
  • Polyethylene glycol
  • Cetyltrimethylammonium chloride
  • LAS
Potassium metabisulphite is a:
  • Preservative
  • Antioxidant
  • Artificial sweetner
  • Both (A) and (B)
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