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WEHELPF9

Author name: seharnaseem

12th Rabi-ul-Awal

The sacred day of 12th of Rabi–ul–Awal is especially important to the Muslim world, because on this day Prophet Muhammad (peace be upon him) was born, who led humanity from darkness to light and who is described by Allah as “a mercy to all the worlds”. Prophet Muhammad(peace be upon him) gave us the lesson of Equality, Justice, Humanity.He […]

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Breast Cancer

Like other cancers, breast cancer is an uncontrolled growth of breast cells. Breast cancer occurs as a result of abnormal changes or mutation in the genes responsible for regulating the healthy growth of breast. The genes are in each cell’s nucleus, which acts as an the “controller” of concern cell.

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Organo-metallic compounds:

Organometallic compounds: “Organometallic compounds are those compounds that have at least one carbon-metal compound.” Grignard reagent: They are named after the Victor Grignard (Nobel prize 1912) who discovered and developed their use as synthetic reagent. ➢ General formula: RMgX or R-MgX Where: R=alkyl or aryl group X=halogens (Cl,Br,I) ➢ Preparation: •They are prepared in laboratory

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