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ICSE Class 10 Answered

A substance X used in a building material and is insouble in water.When X reacted with dil.HCl , it produces a gas which turn lime water milky . Predict the substance X and write its chemical equations involved .
Asked by sucharitasahoo1 | 04 Jan, 2018, 03:13: PM
answered-by-expert Expert Answer

The compound is Calcium carbonate.

It will react with HCl and forms metal chloride and carbon dioxide is evolved.

Carbon dioxide turns lime water milky.

CaCO subscript 3 space space plus space 2 HCl space space rightwards arrow space space CaCl subscript 2 space space end subscript plus space space straight H subscript 2 straight O space plus space CO subscript 2 

Answered by Varsha | 04 Jan, 2018, 03:26: PM

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