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Which of the following oxides is used in lead storage battery
Options
(a) PbO
(b) PbO₂
(c) Pb₂O₃
(d) Pb₃O₄
Correct Answer:
PbO₂
Explanation:
Lead storage battery consists of a group of lead plates bearing compressed spongy lead, alternating with a group of lead plated bearing lead dioxide, PbO₂. These plates are immersed in a solution of about 30% H₂SO₄. Overall cell reaction is
Pb + PbO₂ + 4H⁺ +2SO₄²⁻ → 2PbSO₄ + 2H₂O
E (Cell) is 2.041 Volt.
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Topics: Electrochemistry and Chemical Kinetics
(87)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The most suitable method of the separation of a 1:1 mixture of ortho-and para
- Bleaching powder is obtained by treating Cl₂ with
- Among the following compounds the one that is most reactive towards electrophilic
- Primary,secondary and tertiary amines can be distinguished by
- According to law of mass action rate of a chemical reaction is proportional to
Topics: Electrochemistry and Chemical Kinetics (87)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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