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Complex A has a composition of H(12) O6 ...

Complex A has a composition of `H_(12) O_6 Cl_3 Cr`. If the complex on treatment with conc. `H_2 SO_4` 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 (H_2 O)_5 Cl] Cl_2 * H_2 O`

B

`[Cr(H_2 O)_3 Cl_3] * 3H_2 O`

C

`[Cr(H_2 O)_6 ] Cl_3`

D

`[Cr(H_2 O)_4 Cl_2] Cl * 2H_2 O`

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JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS 2020-CHEMSITRY
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