JEE MAIN - Chemistry (2023 - 24th January Morning Shift - No. 1)
The primary and secondary valencies of cobalt respectively in $$\mathrm{[Co(NH_3)_5Cl]Cl_2}$$ are :
2 and 8
2 and 6
3 and 5
3 and 6
Explanation
$$\mathrm{[Co(NH_3)_5Cl]Cl_2}$$
x + 5 (0) – 1 = + 2 $$ \Rightarrow $$ x = + 3
Secondary valency is the number of ligands in the complex which is equal to 6.
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