An aqueous solution of borax is
(a) neutral (b) amphoteric
(c) basic (d) acidic
(c) Borax is a salt of a strong base (NaOH) and a weak acid (H3BO3). It is, therefore, basic in nature.
Question 06. Calcium phosphate is present in tooth enamel. Its nature is (a) basic (b) acidic (c) neutral (d) amphoteric
Is Fe2O3 basic or acidic in nature ?