40 gm of a carbonate of an alkali metal or alkaline earth metal containg some insert impurities was made to react with excess HCl solution. The liberated CO_(2) occupied 12.315 litre at 1 atm and 300K. The corrrect option is:

40 gm of a carbonate of an alkali metal or alkaline earth metal contai

1.	40 gm of a carbonate of an alkali metal or alkaline earth metal containg some insert impurities was made to react with excess HCl solution. The liberated CO_(2) occupied 12.315 litre at 1 atm and 300K. The corrrect option is:
Answer» Mass of IMPURITY of 1gm and METAL is Be Mass of impurity is 3gm and metal is Li Mass of impurity is 6GM and metal is Li Mass of impurity is 2gm and metal is Mg Answer :B