MPPSC MAINS 2015 Paper-III

Points to Remember: Argon’s inert nature Its applications in various industries Safety considerations in handling argon Introduction: Argon (Ar) is a chemical element, a colorless, odorless, tasteless noble gas. It constitutes approximately 0.934% of the Earth’s atmosphere, making it the third most abundant gas in the air after nitrogen and oxygen. Its inertness, meaning it … Read more

Points to Remember: Russell-Saunders coupling is a method for describing the total angular momentum of an atom. It involves combining the individual orbital and spin angular momenta of electrons. It’s an approximation that works well for light atoms but breaks down for heavier atoms. Understanding Russell-Saunders coupling is crucial in atomic spectroscopy and quantum chemistry. … Read more

Points to Remember: Gel chromatography is a separation technique. It separates molecules based on size and shape. It uses a porous gel matrix. Applications span various scientific fields. Introduction: Gel chromatography, also known as size-exclusion chromatography (SEC), is a powerful analytical technique used to separate molecules based on their size and shape. Unlike other chromatography … Read more