Chemistry The metal ion present in Vitamin B12 is Zinc Iron Nickel Cobalt Zinc Iron Nickel Cobalt ANSWER DOWNLOAD EXAMIANS APP
Chemistry An oxidising agent is a In a chemical reaction its oxidation number increases An electron donor It releases H2 in a chemical reaction An electron acceptor In a chemical reaction its oxidation number increases An electron donor It releases H2 in a chemical reaction An electron acceptor ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More stable Non-combustible Lighter than hydrogen More abundant than hydrogen More stable Non-combustible Lighter than hydrogen More abundant than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The components of water can be separated by They can not be separated Chemical methods Physical methods Both A and B They can not be separated Chemical methods Physical methods Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Helium Carbon dioxide Sulphur dioxide Nitrogen Helium Carbon dioxide Sulphur dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS