Electrophilic addition: In this addition reactions, an electrophile attack on double bond of alkene to form an intermediate carbocation and convert one of the pi bond to sigma bond. In second step the counter ion attacks on this intermediate to form saturated hydrocarbon as product.
Ketu is the reflection of all the baggage of values and motives that we have brought into this birth. With a proper study of the placement of Ketu in a Birth-Chart, we can also get a hint or an idea that in what area a person is bound to perform well and where his interests and inclinations lie in the current birth.
Rahu is the ascending node of the moon and it afflicts the Moon more than any other planet. Rahu points to the direction of spiritual growth for an individual and wherever he is placed in a chart there will be a tendency to indulgence or obsession.etu is the descending node of the moon through the eyes of Indian Astrology. Ketu is known to afflict the Sun more so than any other planet. This is in contrast to Rahu, which is associated with the Moon. Ketu is also associated with comets and like its associate Rahu it is known to be exceedingly cruel and malefic.