5 g of a sample of magnesium carbonate on treatment with excess of dilute hydrochloric acid gave 1.12 L of CO_(2) at STP . The percentage of magnesium carbonate in the mixture is

5 g of a sample of magnesium carbonate on treatment with excess of dil

1.	5 g of a sample of magnesium carbonate on treatment with excess of dilute hydrochloric acid gave 1.12 L of CO_(2) at STP . The percentage of magnesium carbonate in the mixture is
Answer» 42 40 84 80 Answer :C