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Carnallite on electrolysis gives
Options
(a) Ca and Cl₂
(b) Na and CO₂
(c) Al and Cl₂
(d) K and Cl₂
Correct Answer:
K and Cl₂
Explanation:
Carnallite is an ore of potassium: KCl.MgCl₂.6H₂O. Electrolysis of fused KCl and CaCl₂ is carried out to obtain potassium. KCl ⇌ K⁺ + Cl⁻. At cathode, K⁺ + e⁻ → K. At anode, 2Cl⁻ → Cl₂ + 2e⁻.
Related Questions: - The amount of zinc required to produce 224mL of H₂ at STP on treatment with dilute H₂SO₄
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Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The amount of zinc required to produce 224mL of H₂ at STP on treatment with dilute H₂SO₄
- The empirical formula of an acid is CH₂O₂ , the probable molecular formula of
- The amount of electricity requried to deposit 0.9 g of aluminium, when the electrode
- 40 mg of pure sodium peroxide is dissolved in 10L of distilled water. The pH of
- HSO₄⁻ + OH⁻ → SO₄²⁻ + H₂O. which is correct about conjugate acid – base pair
Topics: Surface Chemistry and Isolation of Elements (88)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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