Jee Main
Salt Analysis
JEE Main 2024 (Online) 30th January Evening Shift
INTEGER+4 / -12024
Number of metal ions characterized by flame test among the following is ________.
\(\mathrm{Sr}^{2+}, \mathrm{Ba}^{2+}, \mathrm{Ca}^{2+}, \mathrm{Cu}^{2+}, \mathrm{Zn}^{2+}, \mathrm{Co}^{2+}, \mathrm{Fe}^{2+}\)