Question

14. A student dropped few pieces of marble in dil. HCl contained in a test tube. The gas evolved passed through lime water? What changes would be observed in lime water? Write balanced chemical equation for the reaction when
(a) gas was evolved.
(b) gas was passed through lime water
(c) gas was passed through excess lime water
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Answer 1

Answer

(a)evolved gas is CO2

(b) CO2+CaO→→→CaCO3

(c) sorry i dont know for this