Question

(iv) Which of the following elements will form an acidic oxide?
(a) An element with atomic number 7
(b) An element with atomic number 3
(c) An element with atomic number 12
(d) An element with atomic number 19​

Answer 1

Answer:

An element with atomic number 7

EXPLAIN

So oxides of non metals are acidic in nature. The S block elements such as sodium and magnesium are metals and their oxides are basic in nature and the metals of p block that is Phosphorus and sulphur have acidic oxides. Hence, the correct option is B and D.