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An organometallic compound is defined as one that contains atleast one direct metal-carbon bond. This excludes some carbon compounds which are considered to be inorganic such as carbides (like calcium carbide) and cyanides (like sodium cyanide). The carbon containing groups may be carbonyls, alkyl, alkene, aromatic, cyclic or heterocyclic. From the exam point of view like CSIR-UGC-NET in Chemistry and GATE in Chemistry , organometallic chemistry is very important branch of chemistry. Every time, so many questions are asked in CSIR-UGC-NET in Chemistry and GATE in Chemistry. It is the key topic for all the institute preparing for CSIR-UGC-NET in Chemistry, GATE coaching in Chemistry . Day by day, the competitive level of any entrance examination of different academic programmes from the renowed Institutions and Universities are very chalenging. This is mainly because; every day more students are involving in competition to shape their career with the help of these programmes rel...

Immiscible Liquids: Immiscible liquids are liquids that do not mix to give a homogenous solution. Liquid immiscibility is a state in which two liquids with different compositions coexist in equilibrium with each other. Immiscible liquids do not mix and form an emulsion of droplets or networks of one liquid within the other (e.g. oil and water). Liquids can become immiscible on lowering the temperature and remain unmixed into two liquids. Immiscibility occurs when the Gibbs free energy of the two liquids is lesser than the gibbs free energy of a mixed liquids.  In chemistry, when two liquids mix together, they can be classified as miscible or immiscible. In miscible liquids, the bonds that are holding each separate liquid together must be broken and new bonds must be formed. When this occurs, the two liquids mix together in equal proportions and mix completely. Immiscible liquids are the opposite. Their bonds are not broken in order to form new bonds, and the two liq...