Chloroform

Introduction Graphene is considered as pure carbon in the form of a very thin, one atom thick nearly transparent sheet. It is very strong for its low weight (100 times more stronger than steel and it conducts heat and electricity efficiently. While scientists had theorized about graphene for decades, it was first produced in the lab in 2003. Because it is virtually two-dimensional, it interacts oddly with light and with other materials. Researchers have identified the, ballistic transport of…

A small burette funnel was filled with column packing solvent at mobile phase, high boiling petroleum, in this case hexane (and then 10%acetone hexane mixture), and Alumina as stationary phase. When adding the sand and the alumina they have to be first mixed with the hexanes in order not to disturb the column. The Lycopene is Red- Orange and more attracted to alumina due to its high degree of Unsaturation, which can be expected to be eluted after Yellow-Orange Carotene pigments. And the other…

Aromatic plants bear essential oils which are fragrant and so are named ‘Aromatic’. These plants retain their fragrant components in specialised cells and tissues of organs even after drying. Oil may be present in external glands as epidermal cells or their modification such as ‘Secretory Hair’ or may be present internally throughout the plant forming Schizogenous formation which on dissolution of surrounding cells forms Schizolysogenous gland which further grow into long canals. Secretion such…

Readers’ Delight Students’ Reading Material 1. Fuel • Introduction to Fuel A fuel is a substance that has energy stored inside it. So, a substance that produces useful energy when it undergoes a chemical reaction is called as a fuel. Upon burning a fuel, a large amount of energy is released as heat. Fuels are used for various purposes such as cooking food, running vehicles, generating electricity etc. Coal, wood, petrol, diesel etc. are some common fuels. Thus, a fuel can be defined as a…