Chemistry The main buffer system of the human blood is H2CO3 - CO32- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ CH3COOH - CH3COO- H2CO3 - CO32- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ CH3COOH - CH3COO- ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Smelting Roasting Calcination Refining Smelting Roasting Calcination Refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in Raman spectra Emission spectra Fluorescence Absorption spectra Raman spectra Emission spectra Fluorescence Absorption spectra ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following methods is used in determining the number average molar mass of a macromolecule Sedimentation equilibrium Light scattering Viscosity Osmotic pressure Sedimentation equilibrium Light scattering Viscosity Osmotic pressure ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar made by fermentation from cane sugar contains Lactic acid Citric acid Palmitic acid Acetic acid Lactic acid Citric acid Palmitic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Metal are good conductors, because They contain free electrons The molecules in them collide very freely They contain reflecting surface The molecules in them are very close to each other They contain free electrons The molecules in them collide very freely They contain reflecting surface The molecules in them are very close to each other ANSWER DOWNLOAD EXAMIANS APP
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