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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⁻.
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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
- Which of the following compounds gives trichloromethane on distilling with
- Ethyl benzoate can be prepared from benzoic acid by using
- 0.037g of an alcohol, R-OH was added to C₂H₅Mgl and the has evolved measured 11.2cc
- Which of the following compounds gives benzoic acid on hydrolysis
- An organic compound ‘X’ having molecular formula C₅H₁₀O yields phenyl hydrozone
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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