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New answer posted
a year 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
a year agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: The best reagents for the conversion of nitrile to primary amine are LiAlH4 and Sodium/Alcohol. By reduction, the nitriles can be converted into a corresponding primary amine.
New answer posted
a year 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
a year agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: When Benzyl amine is treated with nitrous acid, firstly BDC is formed which is unstable and decomposes to Benzyl alcohol.
New answer posted
a year agoContributor-Level 10
This is a Short Answer Type Questions as classified in NCERT Exemplar
n-hexane is produced when glucose is cooked with HI for a lengthy amount of time. The reaction is depicted in the diagram below.
n-hexane has six carbon atoms joined in a straight chain because glucose has six carbon atoms.
New answer posted
a year 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
a year agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans:
Direct nitration of aniline is not possible on account of oxidation of -NH2 group. However, nitration can be carried after protecting the -NH2 group by acetylation to give acetanilide which is then nitrated and finally hydrolysed to give o- and p-nitroanilines.
The acetyl group being electron withdrawing attracts the lone pair of electrons of the N-atom towards carbonyl group.
As a result, the activating effect -NH2 group is reduced i.e., the lone pair of electrons on nitrogen is less available for donation to benzene ring by resonance. Therefore, acti
New answer posted
a year agoContributor-Level 10
This is a Short Answer Type Questions as classified in NCERT Exemplar
Lactose sugar is a naturally occurring sugar found in milk. D galactose and D glucose, two monosaccharide molecules, are linked together. As a result, disaccharides are the name given to these oligosaccharides.
New answer posted
a year 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
a year agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: HNO3 acts as a base in the nitrating mixture (HNO3 + H2SO4) and provides the electrophile.
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