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4.2 gm of carbonate of an alkaline earth...

4.2 gm of carbonate of an alkaline earth metal is dissolved in excess of HCl solution by which 1.12L `CO_(2)` gas (measured at 273K and 1 atm) is evolved. If the pure metal crystallises as BCC crystal, then the only correct statement regarding the metal is:
[N_(A) `= 6 xx 10^(23)]`

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