Formal charge on an atom in a Lewis structure

This type of question, asked 3 times: 11 May 2024 S2, 14 May 2024 S2, 18 Apr 2026 S1. All 3 questions below, oldest first.

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Question 1
11 May 2024 S2
82 $What is the formal charge on sulfur in the given Lewis structure?$
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Question 2
14 May 2024 S2
90 $What is formal charge on carbon in the following Lewis structure? (CO2 Lewis structure shown)$
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Question 3
18 Apr 2026 S1
3 $What is formal charge on sulphur in sulphuric acid molecule?$
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