pH मान 2 वाला पदार्थ कैसा होगा?

उत्तर: (C) प्रबल अम्ल — pH 2 = strongly acidic. pH scale: 0-6 acidic (lower=stronger), 7 neutral, 8-14 basic (higher=stronger). Examples: stomach acid ~1.5, lemon ~2, vinegar ~3, pure water 7, baking soda ~8, bleach ~12, NaO...