• Rajarshi Ghosh

      Articles written in Resonance – Journal of Science Education

    • Molecule of the Month: Mercurous Nitrite

      Rajarshi Ghosh

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    • Priyadaranjan Ray: Contributions to Chemical Science

      Rajarshi Ghosh

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      Prof. Priyadaranjan Ray’s contribution to inorganic chemistry and related disciplines is enormous. His work on the elucidation of valency and structure of coordination compounds through magnetic measurements, proposition of Ray–Dutt twist mechanism and the discovery of inner metallic complexes of higher than second-order made him internationally famous. He first reported the two ligand isomers of thiosulphate ion and designed several organic reagents for the detection and estimation of metal ions. Stabilization of unusual oxidation state of metal ions through coordination with suitable ligand was also his important work. Besides science, he was interested in its history. Scientific activities as well as a brief life-sketch of this Indian stalwart of science is summarized in this present endeavour.

    • Discovery of Room Temperature Ionic Liquid: P C Ray versus P Walden

      Rajarshi Ghosh

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      As per literature review, henceforth, Sir P C Ray and his coauthor (J N Rakshit) of that very particular synthesis of the ionic compound which was liquid at room temperature should be regarded as the discoverer of room temperature ionic liquid.

    • Ghosh’s Law: A Retrospection

      Rajarshi Ghosh

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      The first organized theory of strong electrolytes was proposed by the Indian scientist Jnan Chandra Ghosh (J C Ghosh) in 1918. As soon as it appeared, it was highly appreciated throughout the globe. However, from 1919 several scientific papers appeared, which criticized this theory. The publication of Debye–Huckel limiting law in 1923 initially subsided Ghosh’s theory. But interestingly, the theory started to regain its importance since the middle of the last century when some important results were published by scientists from India and abroad.

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