All of the following solutions are amphoteric solutions except H2O
H2PO4-
H3O+
HPO4-2

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.