Given below are two statements.

$$\bullet$$ Statement I : In CuSO₄ . 5H₂O, Cu-O bonds are present.

$$\bullet$$ Statement II : In CuSO₄ . 5H₂O, ligands coordinating with Cu(II) ion are O-and S-based ligands.

In the light of the above statements, choose the correct answer from the options given below.

Amongst baking soda, caustic soda and washing soda, carbonate anion is present in :

Number of lone pair(s) of electrons on central atom and the shape BrF₃ molecule respectively, are

Aqueous solution of which of the following boron compounds will be strongly basic in nature?