Primary valency of Co in [Co(en)2Cl2] Cl is

Question

Primary valency of Co in [Co(en)2Cl2] Cl is (A)  +1  (B)  +2  (C)  +3  (D)  +6

Tardigrade Admin · Accepted Answer

Primary valency is the oxidation state of the central metal ion. Let, oxidation state of Co in [Co(en)2Cl2] Cl be x. x +2 (0 ) + 2 (-1) - 1 = 0 ∴ x= + 3 ∴ Primary valency of Co = + 3

Q. Primary valency of $C o$ in $[C o (e n)_{2} C l_{2}] Cl$ is

$+ 1$

$+ 2$

$+ 3$

$+ 6$

Primary valency is the oxidation state of the central metal ion.
Let, oxidation state of $C o$ in $[C o (e n)_{2} C l_{2}] Cl$ be $x$ .
$x + 2 (0) + 2 (- 1) - 1 = 0$
$∴ x = + 3$
$∴$ Primary valency of $C o = + 3$

Q. Primary valency of Co in [Co(en)2​Cl2​]Cl is

+1

+2

+3

+6