An unknown sample was dissolved in water and made of titrate

Last updated: 7/4/2023

An unknown sample was dissolved in water and made of titrate with 0 1 M HCI solution initially using phenophthalein indicator The volume of HCI consumed was found to be V ml Then to the resulting solution methyl orange indicator was added and again titrated with same HCI solution The volume of HCI consumed now was found to be V ml If V VM then the unknown sample might not contain M A only Na CO3 B equimolar mixture of NaOH Na CO and NaHCO C equimolar mixture of NaOH and NaHCO D equimolar mixture of NaOH and Na CO3