Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of s-electrons in Mg(Z = 12) p-electrons in Ne(Z = 10) p-electrons in CI(Z = 17) d-electrons in Fe(Z = 26) s-electrons in Mg(Z = 12) p-electrons in Ne(Z = 10) p-electrons in CI(Z = 17) d-electrons in Fe(Z = 26) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is CH3COOH - CH3COO- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ H2CO3 - CO32- CH3COOH - CH3COO- H2CO3 - HCO3 NH2CONH2 - NH2CONH+ H2CO3 - CO32- ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is methane helium ozone oxygen methane helium ozone oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used bleaching agent is alcohol sodium chlorine carbon dioxide chlorine alcohol sodium chlorine carbon dioxide chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of a hydrogen atom consists of 1 proton + 2 neutron 1 electron only 1 proton only 1 neutron only 1 proton + 2 neutron 1 electron only 1 proton only 1 neutron only ANSWER DOWNLOAD EXAMIANS APP
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