On treatment with cold water, an element (A) reacted quietly, liberating a colourless, odourless gas (B) and a solution (C). Lithium reacted with (B) yielding a solid product (D) which effervesced with water to give a strongly basic solution (F). When CO_(2) (E) was bubbled through solution (C), an initial ppt. (G) was formed but this redissolved forming solution (H) when more CO_(2) was passed. Precipitate (G) effervesced when moistened with conc. HCl and gave a deep red coloration to a Bunsen burner flame. (G) on heating with excess of carbon at 2000^(@)C gave (I)QMetal (A) may be

On treatment with cold water, an element (A) reacted quietly, liberati

1.	On treatment with cold water, an element (A) reacted quietly, liberating a colourless, odourless gas (B) and a solution (C). Lithium reacted with (B) yielding a solid product (D) which effervesced with water to give a strongly basic solution (F). When CO_(2) (E) was bubbled through solution (C), an initial ppt. (G) was formed but this redissolved forming solution (H) when more CO_(2) was passed. Precipitate (G) effervesced when moistened with conc. HCl and gave a deep red coloration to a Bunsen burner flame. (G) on heating with excess of carbon at 2000^(@)C gave (I)QMetal (A) may be
Answer» Be Ca Sr Ba Answer :B