Chemistry Burning pyrites ore gives out Carbon dioxide gas Sulphur dioxide gas Nitric oxide gas Nitrogen dioxide gas Carbon dioxide gas Sulphur dioxide gas Nitric oxide gas Nitrogen dioxide gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The buffer action of blood is due to the presence of HCI and NaCI CI– and [CO3]2– CI– and [HCO3]– [HCO3]– and H2CO3 HCI and NaCI CI– and [CO3]2– CI– and [HCO3]– [HCO3]– and H2CO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The trans-uranium elements are the chemical elements with atomic numbers greater than 92 86 89 96 92 86 89 96 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Pyrolusite Siderite Magnetite Galena Pyrolusite Siderite Magnetite Galena ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacture of iron from iron ore involves the process of Reduction Electrolysis Fractional distillation Oxidation Reduction Electrolysis Fractional distillation Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Difference in layers of atoms Tetrahedral structure of diamond None of these Difference of crystalline structures Difference in layers of atoms Tetrahedral structure of diamond None of these Difference of crystalline structures ANSWER DOWNLOAD EXAMIANS APP
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