Question

Select the reagent that will separate the pairs of ions listed.

Answer 1

1 - a, 2-b, 3-d, 4 - e

Explanation:

$A g^{+} \text {and } A l^{3+}$ - Separated by 6M HCl

Silver and aluminum ions can be separated using the acid, 6M HCl.

$C u^{2+} \text { and } C a^{2+}$- Separated by H₂S

Copper and Calcium ions can be separated by the reagent hydrogen sulfide, H₂S.

$M g^{2+} \text { and } K^{+}$ - Separated by (NH₄)₂HPO₄ in NH₃

Magnesium and Potassium ions can be separated by the reagent Ammonium hydrogen phosphate in ammonia.

$N i^{2+} \text { and } C o^{2+}$- cannot be separated

Nickel and Cobalt ion cannot be separated by the reagents given at all.