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Question
Ozone is an allotropic form of oxygen. It acts as a powerful oxidising agent.
Which one of the following compounds is formed when ozone reacts with black lead sulphide?
Options
Blue coloured lead trioxide
White coloured lead sulphate
Green coloured lead oxide
Red coloured tri lead tetroxide
MCQ
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Solution
White coloured lead sulphate
Explanation:
Ozone has a bent structure due to sp2 hybridisation and the presence of a lone pair on the central oxygen atom. It is a strong oxidising agent and oxidises black lead sulphide (PbS) to white lead sulphate (PbSO4):
\[\ce{PbS + 4O3 -> PbSO4 + 4O2}\]
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