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Question
What happens when concentrated sulphuric acid is added to carbonates?
Short Answer
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Solution
When concentrated sulphuric acid is added to metal carbonates, it decomposes them to form a metal sulphate salt, water, and evolves carbon dioxide (CO2) gas with brisk effervescence.
Equation:
\[\ce{Na2CO3 + H2SO4 (conc.) -> Na2SO4 + H2O + CO2 ^}\]
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