Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen
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New answer posted
3 months agoContributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
The average molecular mass of drugs is of the order of 100-500 u.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, c, d)
(a) Cationic detergents are quaternary ammonium salts of amines with acetates, chlorides or bromides as anions. These detergents have germicidal properties.
(b) Bacteria cannot degrade the detergents containing highly branched chains, therefore, in most of the detergents used these days, the branching is kept to a minimum so that the detergents become easily biodegradable.
(c) Some synthetic detergents can give foam even in ice cold water.
(d) Synthetic detergents are cleansing agents which have all the properties of soaps, but which actually do not contain any
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, d) Sodium salts of sulphonated long chain alcohol and sodium salts of sulphonated long chain hydrocarbons are anionic detergents e.g., Sodium laurylsulphate CH3 (CH2)10CH2OSO3– Na+ and sodium dodecylbenzene sulphonate.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, d) Tranquilizers are neurologically active drugs. Veronal and luminal are derivatives of barbituric acid used as tranquilizers.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, d) Ranitidine and cimetidine are antihistamines which are used as ant-acids. These drug result in release of lesser amount of acid. Brompheniramine and terfenadine are antihistamines which act as antiallergic in drugs.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(b, d) Sodium Hydrogen carbonate and Magnism Hydroxide, both are mild alkalies, are used as ant-acids.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(c, d) Penicillin destroys bacteria by destroying the cell wall of the microorganism or kill the bacteria so, it has bacteriocidal effect. Penicillin has a narrow or limited spectrum.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, b, c)
(a) Iproniazid is a hydrazine drug used as an antidepressant.
(b) Phenelzine is also known as Nardil. It is used in the treatment of major depressive disorder.
(c) Equanil is used in controlling depression and hypertension.
(d) Salvarsan is an antibacterial drug. It is used in the treatment of Syphilis.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, b)
(a) Sulphapyridine is a sulphonamide antibacterial drug.
(b) Prontosil is also called sulphamidochrysoidine.
(c) Salvarsan is arsenic based antibacterial drug.
(d) Nardil is an antidepressant drug.
New answer posted
3 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, b) Barbiturates are tranquilizers which are used as hypnotics or sleep inducing agents.
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