BPSC CCE Prelims
Electrochemistry Previous Year Questions (PYQs)
Practice solved questions for Electrochemistry with detailed step-by-step solutions, key insights, and trend analysis for BPSC CCE PRELIMS.
Solved Previous Year Questions
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Standard electrode potential of three metals A, B and C are respectively 0.5 V, -3 V and -1.2 V. Reducing power of these metals would be
Detailed Explanation:
Reducing power is inversely related to standard electrode potential (E°) — the more negative the E°, the stronger the reducing agent.
Metal B (−3.0 V) has the most negative potential → highest reducing power. Metal C (−1.2 V) is moderately negative → intermediate reducing power. Metal A (+0.5 V) is positive → lowest reducing power. Order: B > C > A.
The conductivity of a strong electrolyte
Detailed Explanation:
Conductivity (specific conductivity) measures the ability of a unit volume of solution to conduct electricity, depending on number of ions per unit volume.
On dilution, total ions remain constant but volume increases, so ion concentration per unit volume decreases, causing conductivity to decrease. (Note: Molar conductivity increases with dilution, but the question asks about conductivity.)
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