1.

d) (i) and (ii)A colourless gas B is produced wwith a solution A. The gas B turns lime water milky, Whatare A and B?4.hen egg shell is treated) A NaCl and B CO, (b) A NaCl and B-((c) A HCl and BCO (d) A- H,SO, andB-0

Answer»

egg shell contains calcium carbonatehencewhen treated with HCl-Ait produces carbon diaoxideB-CO2



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