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NVAEasyJEE Main 2025 · 24 January, Shift 1Salt Analysis (Cations & Anions)

Chemistry Question from JEE Main 2025 · 24 January, Shift 1

Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with K4[Fe(CN)6]K_4[\mathrm{Fe}(\mathrm{CN})_6] is : Cu2+, Fe3+, Ba2+, Ca2+, NH4+, Mg2+, Zn2+Cu^{2+}, \, Fe^{3+}, \, Ba^{2+}, \, Ca^{2+}, \, NH_4^+, \, Mg^{2+}, \, Zn^{2+}

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