Which one of the following is not an amphoteric substance (a) HNO3 (b) HCO3- (c) H2O (d) NH3 Which one of the following is not an amphoteric substance (a) HNO3 (b) HCO3- (c) H2O (d) NH3 November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,