Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Magnesium Silicon Oxygen Iron Magnesium Silicon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has no unit Electron affinity Ionization energy Excitation potential Electronegativity Electron affinity Ionization energy Excitation potential Electronegativity ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number and the atomic mass Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number but different atomic masses The same atomic number and the atomic mass Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number but different atomic masses ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is H2CO3 - CO32- CH3COOH - CH3COO- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ H2CO3 - CO32- CH3COOH - CH3COO- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following ions , the colour is not due to d-d transition ? [CrO4]2− [Cu(NH3)4]2+ [Ti(H2O)6]3+ [CoF6]3+ [CrO4]2− [Cu(NH3)4]2+ [Ti(H2O)6]3+ [CoF6]3+ ANSWER DOWNLOAD EXAMIANS APP
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