12 10 gm of a sample of CaCO is treated with 200 ml of 0 1 N

Last updated: 6/28/2023

12 10 gm of a sample of CaCO is treated with 200 ml of 0 1 N HCI Calculate the purity of CaCO 1 50 2 10 3 65 4 90 13 The number of moles of potassium permagnet required to oxidise 2 moles of oxalic acid in acidic medium is 1 3 1 6 11 2 is 4 14 The number of moles of ferrous oxalate oxidised completely by 1 mole of K Cr O in acidic medium 3 2 4 2 7 2 12 4 7 5 2 3 2 ANSWER 3 8 2 3