Element 'A' burns in nitrogen to give an ionic compound 'B' which reacts with water to give 'C' and 'D'. The solution of 'C' becomes milky on bubbling carbon dioxide gas. Identify the compounds A, B, C and D.

Element A burns in nitrogen to give an ionic compound B. Compound B reacts with water to give C and D. The solution of C becomes milky on bubbling carbon dioxide . The element A is

Element A burns in nitrogen to give an ionic compound B. Compound B reacts with water to give C and D. A solution to C becomes milky on bubbling carbon dioxide. Identify A,B,C and D.

Element (A) burns in nitrogen to give an ionic compound, (B) reacts with water to give (C) and (D). A solution of (C) becomes milky on bubbling carbon dioxide. Idendity (A),(B),(C) and (D)

The element A burns in nitrogen to give an ionic compound B. The compound B react with water to give C and D. A solution of C becomes milky on bubbling carbon dioxide. What is the nature of compound D?

An element 'A' burns in nitrogen to give an ionic compound 'B' which reacts with water to give 'C' and D. 'E' is used in white washing. Identify, A, B, C and D:

When water is added to compound (A) of calcium, solution of compound (B) is formed. When carbon dioxide is passed into the solution, it turns milky due to the formation of compound (C). If excess of carbon dioxide is passed into the solution milkiness disappears due to the formation of compound (D). Identify the compounds A,B,C and D. Explain why the milkiness disppears in the last step.