JEE Main 202430 Jan, Evening shiftChemistryMediumd- and f-Block Elements158× since 2002Number of metal ions characterized by flame test among the following is ________. Sr2+,Ba2+,Ca2+,Cu2+,Zn2+,Co2+,Fe2+\mathrm{Sr}^{2+}, \mathrm{Ba}^{2+}, \mathrm{Ca}^{2+}, \mathrm{Cu}^{2+}, \mathrm{Zn}^{2+}, \mathrm{Co}^{2+}, \mathrm{Fe}^{2+}Sr2+,Ba2+,Ca2+,Cu2+,Zn2+,Co2+,Fe2+Your answerType your answer. Integers and decimals are accepted.CheckSkip · show solution