Question

A substance X is used as a building material and insoluble in hydroxide. when reacts with dilute HCL, it produces a gas which turns lime water milky, product the substance and write the chemical equation involved.​

Answer 1

Answer:

The substance is probably calcium carbonate (CaCO3). also called lime stone or marble. It is used as a building material. On reacting with dilute HCl, it evolves CO2 gas which turns lime water milky.

Explanation:

@itzyourtabahi here

Answer 2

$\huge\underline\bold\pink{Question-}$

A substance X is used as a building material and insoluble in water. When reacts with dil. HCl, it produces a gas which turns lime water milky. Predict the substance and write the chemical equation involved.

$\huge\underline\bold\green{Answer-}$

The Substance X is $CaCO_3$,used as a building material & insoluble in water.

The reaction involved with dil, HCI is

$CaCO_3(s)$ + $2HCl(aq)$ $\rightarrow$ $CaCl_2(aq)$ Calcium carbonate (x) Dil. Calcium chloride + $H_2O(l) +CO_2$$\uparrow$$CO_2$when passed through limewater ,the lime water turns milky. Due to the formation of white Precipitate of $CaCO_3Ca(OH)_2(aq)+CO_2(g)$$\rightarrow$$CaCO_3(s)+H_2O(l)$.