Given below are two statements : Statement (I) : An element in the extreme left of the periodic table forms acidic oxides. Statement (II) : Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table. In the light of the above statements, choose the correct answer from the options given below :

Statement I: An element in the extreme left of the periodic table forms acidic oxides.

Statement II: Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table.

Evaluation of Statement I:

Elements on the extreme left of the periodic table are alkali metals (Group 1) and alkaline earth metals (Group 2). These are highly electropositive metals that form basic oxides (e.g., $$Na_2O + H_2O \rightarrow 2NaOH$$), not acidic oxides. Statement I is false.

Evaluation of Statement II:

Elements on the extreme right of the periodic table (excluding noble gases) are halogens and other non-metals. Non-metals form acidic oxides. For example:

$$SO_3 + H_2O \rightarrow H_2SO_4$$ (sulphuric acid)

$$Cl_2O_7 + H_2O \rightarrow 2HClO_4$$ (perchloric acid)

So acid is indeed formed when water reacts with oxides of reactive non-metals on the right side. Statement II is true.

Statement I is false but Statement II is true, which corresponds to Option 4.