Question

btwn sodium , aluminium .silicon and sulphur .which one will form an oxide that will give a PH of less than 7 when placed in a solution

Answer 1

Answer:

sodium

Explanation:

as we know that metals form base which have ph below 7. as their are 2 metals but in them aluminium forms amphoteric.

so, answer is sodium

Answer 2

Answer:

sulphur

Explanation:

Metals are mostly basic apart from some which are amphoteric therefore for an element to have a ph of less than 7 it has to be acidic which in this case sulphur because it's a non metal