Chemistry in Everyday Life

Sodium rosinate, sodium silicate, borax, etc. are added to laundry soaps. These compounds behave as ____ .

Correct! Wrong!

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Sodium rosinate, borax, sodium silicate, etc are added as fillers to soap to give more lather.

Receptor proteins are crucial to _____ system in the body.

Correct! Wrong!

Receptors are crucial to communication system in the body. Receptors, in others words, are receivers. These are associated with the nervous system, which is nothing but a communication system. Metabolic system, digestive system and reproductive system are not associated with any receptors to send any signal to the neurons.

Furacine and Soframycin are examples of ____ drugs.

Correct! Wrong!

Furacine and Soframycin are examples of antiseptic drugs. These are used for external use on skin for burns, itches, wounds, etc.

The classification of drugs as antibiotics, analgesics, antipyretics, antihistamines etc is based on ____.

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Pharmacology refers to the actions of drugs on mechanisms in the body. This classification is useful for doctors as it provides them the whole range of drugs available for the treatment of a particular type of problem.

Dettol is a mixture of ____ and ____ .

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Dettol is a mixture of chloroxylenol and terpineol.

____ solvent is used to dissolve soaps to make them transparent.

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Ethanol or in simple language, alcohol is used to dissolve ordinary toilet soap to make it a transparent soap. The excess solvent evaporates.

Which of the statements is not true about antiseptics and disinfectants?

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Same substance at low concentrations behaves as an antiseptic while at higher concentrations behaves as a disinfectant. Thus, a 0.2 % solution of phenol is an antiseptic while 1% solution of phenol is disinfectant.

Artificial sweetening agents are used because ____ .

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When artificial sweetening agents are taken by diabetic patients, the sugar in it is not absorbed in the blood. Rather, it gives a sweet taste to the taste buds, but it is excreted from the body in urine, unchanged. It appears to be entirely inert and harmless when taken, and also keeps a control of the calorie intake. Hence, it is safe for diabetic patients.

Synthetic detergents are classified into _______.

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Synthetic detergents are classified into three classes. 1. Cationic detergents , 2. Anionic detergents, 3. Non- ionic detergents.

Which of the following statements is not true?

Correct! Wrong!

Histamine is a potent vasodilator. Vasodilators are medications that widen blood vessels and help prevent high blood pressure.

Cimetidine and Ranitidine are drugs which are ____ .

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Cimetidine and Ranitidine are drugs which are Antihistamine. They are designed to prevent the interaction of histamine with the receptors present in the stomach wall. This results in the lesser secretion of acid.

Magnesium hydroxides and aluminium hydroxides are better antacids than sodium bicarbonate because ____________.

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Magnesium hydroxides and aluminium hydroxides are better antacids than sodium bicarbonate because they are insoluble and do not increase the pH above neutrality. Magnesium and aluminium are weak bases. They do not increase the pH value above the neutrality and do not dissolve completely. Sodium hydroxide is a strong base and so cannot be used. Barium and calcium are completely insoluble hydroxides.

The use of chemicals for obtaining a therapeutic and useful effect is called ____.

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The use of chemicals for obtaining a therapeutic and useful effect is called Chemotherapy.

____ is the chemical name of Saccharin.

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The chemical name of Saccharin is ortho-sulphobezimide.

Some drugs do not bind to the enzyme's ____ site, but bind to a different site, which is called the ____ site.

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Some drugs do not bind to the enzyme's active site, but bind to a different site, which is called the allosteric site.

Drugs are chemicals with molecular masses in the range of ____.

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Drugs are chemicals with low molecular masses in the range of about 100 -500u.

Which class of these biomolecules is not a drug target?

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Drugs usually interact with biomolecules such as Carbohydrates, Proteins, Lipids and nucleic acids.

Drugs that prevent the binding of the substrate to the active site are called ____ .

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Drugs that prevent the binding of substrate to the active site are called enzyme inhibitors. Certain drugs compete with the natural substrate for the active sites of enzymes. Such drugs are called competitive inhibitors. Non-competitive inhibitors change the active site of the enzyme, after binding at the allosteric site.

The chemicals that added to food to increase the shelf life are____.

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The chemicals that added to food to increase the shelf life are antioxidants and preservatives. These prevent rancidity and the spoilage of food due to microbial growth.

Drugs used to kill or arrest the growth of harmful micro-organisms are called ____.

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Drugs used to kill or arrest the growth of harmful micro-organisms are called antiseptics. Analgesics have a pain killing effect. Antipyretics are used to lower down the body temperature. Antihistamines inhibit the action of the compound histamine which causes inflammation in the body.

Paul Ehrlich got the Nobel Prize for medicine in 1908 for the discovery of ____ .

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Paul Ehrlich got the Nobel Prize for medicine in 1908 for the discovery of an antibiotic.

Tincture of iodine is 2% - 3% mixture of iodine in ____.

Correct! Wrong!

Tincture of Iodine is a 2% - 3% mixture of iodine in alcohol-water mixture. It is an antiseptic.

Drugs used to cure inflammation in the body are called ____.

Correct! Wrong!

Antihistamines inhibit the action of the compound histamine which causes inflammation in the body.

Dilute solution of Boric acid is used as weak antiseptic for ___.

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Dilute solution of Boric acid is used as weak antiseptic for cleaning eyes.

Antipyretics are medicinal compounds which ____.

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Antipyretic drugs are those that lower body temperature. Quinine controls malaria. It belongs to the class of antibiotics. Analgesics are drugs that relieve pain. Antibiotics are drugs which kill other micro-organisms.

Substrates bind to the site of the enzyme through interaction, like ____.

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Substrates bind to the site of the enzyme through a variety of interactions, like ionic bonding, dipole-dipole interaction, hydrogen bonding and Van der Waals interaction.

Non-ionic detergents are mostly used in ____.

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Non-ionic detergents are mostly used in liquid dish washing powder. Toothpaste is made of Anionic detergents. Toilet soaps are made of soaps prepared from upper grade fats and oils. Excess alkali is removed. Hair conditioners are made from cationic detergents.

Drugs used for relieving pain are called ____.

Correct! Wrong!

Drugs used for relieving pain are called analgesics. Antibiotics are used to kill the harmful micro-organisms. Antipyretics are used to lower down the body temperature. Anesthetics are the medicines that produce a reversible loss of sensation.

Prontosil is converted to ____ in the body.

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In the body, Prontosil is converted to sulfanilamide which is a real active compound.

Alitame is a ____ sweetener. Although it is more stable than ____, but it is not used in food industry.

Correct! Wrong!

Alitame is high potency sweetener, although it is more stable than aspartame, still it is not used in the food industry as it becomes difficult to control the degree of sweetness.

Class 12th Chemistry - 16 Chemistry in Everyday Life MCQs
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Class 12th Chemistry - 16 Chemistry in Everyday Life MCQs