Chemistry Sea weeds are important source of Iron Bromine Chlorine Iodine Iron Bromine Chlorine Iodine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The highest volume of gases in lower atmosphere is comprised of Carbon dioxide Oxygen Nitrogen Hydrogen Carbon dioxide Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chernobyl disaster is the result of pollution by Carbon dioxide Acid rain Oil spill Radioactive waste Carbon dioxide Acid rain Oil spill Radioactive waste ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oxidation number of nickel in K4[Ni(CN)4] is –4 8 4 Zero –4 8 4 Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives Copper at anode and oxygen at cathode. Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper Copper at anode and oxygen at cathode. Hydrogen at cathode and oxygen at anode Copper at cathode and oxygen at anode Copper at cathode and anodes dissolve to give copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Green house effect Eutrophication None of these Smog Green house effect Eutrophication None of these Smog ANSWER DOWNLOAD EXAMIANS APP
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