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Question
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the carbon.
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Solution
When sulphuric acid reacts with carbon, it forms carbon dioxide and sulphur dioxide gas.
\[\ce{C + 2H2SO4 -> \underset{dioxide}{\underset{carbon}{CO2}} + 2H2O + \underset{dioxide}{\underset{sulphur}{2SO2 ↑}}}\]
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(a) \[\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}\]
(b) \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
(c) \[\ce{NaCl + 2H2SO4 -> NaHSO4 + HCl}\]
(d) \[\ce{CuO + 2H2SO4 -> CuSO4 + H2O}\]
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\[\ce{Active metal + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
The following is the typical property of dilute acid. Complete it by inserting suitable words:
\[\ce{Sulphide + Acid -> \underline{\phantom{.......}} + \underline{\phantom{.......}}}\]
