a) Tin oxide or Stannous oxide whose chemical formula is SnO and oxidation state of Sn (tin) is +2. This exists in two forms, one is stable blue-black form and other is metastable redform. b) Cr2S3 is Dichromium trisulfide where central metal atom chromium oxidation state is +3.c) Rubidium iodide is the name of the compound RbI. d) Barium dibromide is the name of the compound BaBr2. Ba (2+) has ionic interactions with two Br- ions
In order to polish glass, marble, silver, and jewelry, stannous oxide is occasionally used with lead oxide as an abrasive. In addition to being used as a weighing agent, stannic oxide is also utilized as a mordant for dying fabrics. In order to provide a translucent milky color, it is also employed as an opacifier in glazes and glass. In mouthwash and toothpaste sold without a prescription, stannous fluoride is present. During dental examinations, it's frequently applied as a preventative measure. By covering exposed dentinal tubules, according to Colgate-Palmolive, stannous fluoride lessens tooth sensitivity.
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