Calcium oxide is usually made by the thermal decomposition of materials, such as limestone or seashell, that contain calcium carbonate in a lime kiln.

True

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False

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Solution

The correct option is A True
Materials like limestone seashell contain calcium carbonate and calcium carbonate on thermal decomposition shows reaction as :
$C a C O_{3} \to H e a t C a O + C O_{2}$

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Calcium oxide is usually made by the thermal decomposition of materials, such as limestone or seashell, that contain calcium carbonate in a lime kiln.

The correct option is A TrueMaterials like limestone seashell contain calcium carbonate and calcium carbonate on thermal decomposition shows reaction as :CaCO3→HeatCaO+CO2

The correct option is A True
Materials like limestone seashell contain calcium carbonate and calcium carbonate on thermal decomposition shows reaction as :
$C a C O_{3} \to H e a t C a O + C O_{2}$