Q8 / 54 · NTA Abhyas (JEE Main) 2020 · Chemistry · Redox Reactions

In the complex $K_{4} [T h {(C_{2} O_{4})}_{2} {(H_{2} O)}_{2}]$ . If coordination number is X and oxidation number of Th is Y. The sum of X + Y is?

Correct answer: 8

Solution

K_{4} [T h {(C_{2} O_{4})}_{2} (H_{2} O)]

4 + Y + 2 (- 2) + 0 = 0

Y = + 2

(oxidation number)
Coordination number

(X) = 2 \times 2 + 2 = 6

X + Y = 6 + 2 = 8

Hence, the correct answer is 8.

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