If the methyl orange alkalinity of water equals or exceeds total hardness, all of the harness is-A-non carbonate hardnessB-carbonate hardnessC-pseudo hardnessD-negative non carbonate hardness-B-carbonate hardness

B carbonate hardness If total alkalinity;hardness. Then total hardness = carbonate hardness. And if alkalinity < hardness. Total alkalinity = carbonate hardness.