Core chemistry for class 11 pdf

NCERT core chemistry for class 11 pdf for class 11 all subjects like Maths, Physics, Chemistry and Biology in PDF format. The links of the books are given to download. Revision books are suggested as it covers most of the NCERT Syllabus.


For the chemical, see Amphetamine. The compounds in this class span a variety of pharmacological subclasses, including stimulants, empathogens, and hallucinogens, among others.

Some of amphetamine’s substituted derivatives occur in nature, for example in the leaves of Ephedra and khat plants. Amphetamine was first produced at the end of the 19th century. By the 1930s, amphetamine and some of its derivative compounds found use as decongestants in the symptomatic treatment of colds and also occasionally as psychoactive agents. Their effects on the central nervous system are diverse, but can be summarized by three overlapping types of activity: psychoanaleptic, hallucinogenic and empathogenic.

Various substituted amphetamines may cause these actions either separately or in combination. D-deprenyl, dimethylamphetamine, ethylamphetamine, fencamine, fenethylline, fenproporex, furfenorex, lisdexamfetamine, mefenorex, mesocarb, prenylamine, selegiline, and tranylcypromine. This shows phenethylamine in blue with its substitution points marked. This shows amphetamine with its substitution points marked, excluding the N-position at the NH2 group which is unmarked.