Chemistry

For  overlap, the lobes of the atomic orbitals are perpendicular to the line joining the nuclei.

Pressure=Force/Area

Yes, NH? is a primary amine; it is also known as the amino group. Amines are organic compounds derived from ammonia in which one or more hydrogen atoms are replaced by alkyl or aryl groups.

Amines are bases because they have a lone pair of electrons on nitrogen and their nucleophilic nature (they are electron-rich, so they are attracted to electron-deficient species to donate electrons and accept protons.

In Amines, the nitrogen atom bonds with alkyl or aryl groups replacing hydrogen, whereas in amides, the nitrogen atom bonds directly with the carbonyl group (-CO-).

Olefin is a general terms used for unsaturated hydrocarbons such as hydrocarbons which have more than one bond between their carbon atoms. It is derived from the latin word oleum (oil) and facere (make), since these products formed are usually oily in nature.

Also known as arenes, they are a special category of hydrocarbons that have a ring-like structure. These hydrocarbons consist of delocalized pie electrons and are known to be very stable. Benzene is known to be the simplest aromatic hydrocarbon 

Paraffin is a term derived from the latin literature meaning low reactivity or little affinity. This term is generally used to denote alkanes because out of all the hydrocarbons, they have the least reactivity because of having a strong carbon bond between their atoms.

In the medical entrance test NEET, there can be 1 to 3 questions from this chapter. Some year, the Chemistry section of NEET has only one question from this chapter and in some other years, there can be 3 questions.