19 verified questions · ~17 minutes · answer key checked against the official NTA final key across multiple sources. Text-only questions (diagram-based excluded until they can be shown properly).
The standard cell potential (E°cell) of a fuel cell based on the oxidation of methanol in air that has been used to power television relay station is measured as 1.21 V. The standard half cell reduction potential for O₂ (E° O₂/H₂O) is 1.229 V. Choose the correct statement:
Identify the diamagnetic octahedral complex ions from below: A. [Mn(CN)₆]³⁻ B. [Co(NH₃)₆]³⁺ C. [Fe(CN)₆]⁴⁻ D. [Co(H₂O)₃F₃] Choose the correct answer from the options given below:
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