JEE Advanced 2020 Full Test 4 Paper 1

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Question : 20 of 54

Marks: +1, -0

The most thermally unstable complex is

[Cr(NH3)6][Co(CN)6]
[Cr(NH3)2(CN)4][Co(NH3)4(CN)2]
[Cr(NH3)3(CN)3][Co(NH3)3(CN)3]
[Cr(NH3)(CN)5][Co(NH3)5(CN)]

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