Complex A has a composition of H₁₂O₆Cl₃Cr. If the complex on treatment with conc. H₂SO₄ loses 13.5 % of its original mass, the correct molecular formula of A is :
[Given : atomic mass of Cr=52 amu and Cl= 35 amu]
A. [Cr(H₂O)₅Cl]Cl2⋅H₂O
B. [Cr(H₂O)₃Cl₃]⋅3H₂O
C. [Cr(H₂O)₆]Cl₃
D. [Cr(H₂O)₄Cl₂]Cl⋅2H₂O