Chapter 21: Q21.88P (page 976)

In the electrolysis of molten BaI₂,
(a) What product forms at the negative electrode?
(b) What product forms at the positive electrode?

Short Answer

Expert verified

(a) $I_{2}$ gas

(b) barium metal

Step by step solution

To find the product forms at the negative electrode

${BaI}_{2} \to {Ba}^{2+} {+I}^{-}$

(a)In electrolysis of molten salts, the anion turns into a free element. Anions form free elements in the anode. In molten ${BaI}_{2}$ , the anion is $I^{-}$ .

$2I \to {2e}^{-} {+I}_{2(g)}$

Hence This I turns into role="math" localid="1659623165940" $I_{2} (g)$

To find the product forms at the positive electrode

(b) In electrolysis of molten salts, the cation turns into a free element. Cations form free elements in the cathode. In molten ${BaI}_{2}, {Ba}^{2 +}$ is the cation.

${Ba}^{2+} {+2e}^{-} \to {Ba}_{(s)}$

Hence The ${Ba}^{2+}$ ions turn into barium metal.

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In the electrolysis of molten BaI₂,
(a) What product forms at the negative electrode?
(b) What product forms at the positive electrode?

Short Answer

Step by step solution

To find the product forms at the negative electrode

To find the product forms at the positive electrode

One App. One Place for Learning.

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In the electrolysis of molten BaI2,(a) What product forms at the negative electrode?(b) What product forms at the positive electrode?

Short Answer

Step by step solution

To find the product forms at the negative electrode

To find the product forms at the positive electrode

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Making Measurements

Kinetics

Ionic and Molecular Compounds

Physical Chemistry

Nuclear Chemistry

Inorganic Chemistry

Study anywhere. Anytime. Across all devices.

In the electrolysis of molten BaI₂,
(a) What product forms at the negative electrode?
(b) What product forms at the positive electrode?