Chemistry · 2024
JEE Main · 30 January 2024, Shift 2 · Q90
Number of metal ions characterized by flame test among the following is ____. Sr^2+, Ba^2+, Ca^2+, Cu^2+, Zn^2+, Co^2+, Fe^2+
Number of metal ions characterized by flame test among the following is $\displaystyle \_\_\_\_$.
$$\mathrm{Sr}^{2+}, \mathrm{Ba}^{2+}, \mathrm{Ca}^{2+}, \mathrm{Cu}^{2+}, \mathrm{Zn}^{2+}, \mathrm{Co}^{2+}, \mathrm{Fe}^{2+}
$$
Official answer
From NTA’s final answer key for this paper.
4
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JEE Main 2024 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.