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On treatment with cold wate, element (A)...

On treatment with cold wate, element (A) reacted quietly, librating colourless gas (B) and solution ( C). Lithium reacted with gas (B) and giving a solid product (D) which gave effervesence with water to give basic solution (F). When `CO_(2)` was passed thorough solution ( C), an initial whit ppt (E) was formed but this redissolved forming solution (G) when more `CO_(2)` was passed. PPT (E) effervessced when moistened to Bunsen flame. (E ) on heating wiht excess of carbon at `2000^(@)C` gave (H):
Metal A may be:

A

Be

B

Ca

C

Sr

D

Ba

Text Solution

Verified by Experts

The correct Answer is:
B
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On treatment with cold wate, element (A) reacted quietly, librating colourless gas (B) and solution ( C). Lithium reacted with gas (B) and giving a solid product (D) which gave effervesence with water to give basic solution (F). When CO_(2) was passed thorough solution ( C), an initial whit ppt (E) was formed but this redissolved forming solution (G) when more CO_(2) was passed. PPT (E) effervessced when moistened to Bunsen flame. (E ) on heating wiht excess of carbon at 2000^(@)C gave (H): Incorrect statement among the following is

On treatment with cold wate, element (A) reacted quietly, librating colourless gas (B) and solution ( C). Lithium reacted with gas (B) and giving a solid product (D) which gave effervesence with water to give basic solution (F). When CO_(2) was passed thorough solution ( C), an initial whit ppt (E) was formed but this redissolved forming solution (G) when more CO_(2) was passed. PPT (E) effervessced when moistened to Bunsen flame. (E ) on heating wiht excess of carbon at 2000^(@)C gave (H): Solution (G) contains a salt. Consider following statements: I) It causes permanent hardness of water. II) It can't be obtained in solid state. III) It causes temporary hardness to water. IV) It can be obtained in solid state. Correct statements are:

On treatment with cold water, an element (A) reacts readily liberating a colourless, odourless gas (B) and a solution (C). Lithium is reacted with (B) yeildng a solid product (D) which effervesce with water to give a strongely basic solution (E). When CO_(2) gas is bubbled through solution (C), a white ppt. (F) is formed but this redissolved forming solution (G) when more CO_(2) is passed. Precipitate (F) effervesced when moistened with conc. HCl and give deep red colouration to Bunsen burner flame. (F) on heating with excess of carbon at 2000^(@) C give (H). Answer the following question on the basis of above passage. Q. Solution (G) contains a salt which (i) causes permanent hardness of water (ii)can not be obtained in solid state (iii)causes temporary hardness of water (iv)can be obtained in solid state Select the correct statements :