Which statements about lime are correct?
1- Lime is made by heating calcium carbonate (limestone).
2- Lime is used to desulfurise flue gases.
3- Lime is used to treat alkaline soil.
4- The chemical name for lime is calcium oxide.
1 )
1 and 3
1, 2 and 4
3 )
1 and 4 only
4 )
2, 3 and 4
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