Chemistry The main buffer system of the human blood is H2CO3 - HCO3 CH3COOH - CH3COO- H2CO3 - CO32- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 CH3COOH - CH3COO- H2CO3 - CO32- NH2CONH2 - NH2CONH+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Filtration Flocculation Water softening Sedimentation Filtration Flocculation Water softening Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a characteristic feature of alloys? They are Homogeneous systems Compounds Mixtures Solutions Homogeneous systems Compounds Mixtures Solutions ANSWER DOWNLOAD EXAMIANS APP
Chemistry An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 19 53 17 36 19 53 17 36 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Anthracite Lignite Bituminous Peat Anthracite Lignite Bituminous Peat ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of different elements have Same atomic number and same electronic configuration Different atomic number and different number of valence electrons Different atomic number and same eletronic configu-ration Same number of electrons and neutrons Same atomic number and same electronic configuration Different atomic number and different number of valence electrons Different atomic number and same eletronic configu-ration Same number of electrons and neutrons ANSWER DOWNLOAD EXAMIANS APP
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