Complex A has a composition of H12O6Cl3Cr. If the complex on treatment with conc. H2SO4 loses 13.5% of its original mass, the co

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]

(1) [Cr(H₂O)₅Cl]Cl₂ · H₂ O

(2) [Cr(H₂O)₃Cl₃] · 3H₂ O

(3) [Cr(H₂O)₄Cl₂]Cl · 2H₂ O

(4) [Cr(H₂O)₆]Cl₃

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

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