' X ' is the number of acidic oxides among $VO_{2}$ , $V_{2} O_{3}, CrO_{3}, V_{2} O_{5}$ and $Mn_{2} O_{7}$ . The primary valency of cobalt in $[Co (H_{2} NCH_{2} CH_{2} NH_{2})_{3}]_{2} (SO_{4})_{3}$ is Y. The value of $X + Y$ is :

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Answer:

A

Solution:

$CrO_{3} = Acidic Mn_{2} O_{7} = Acidic ∴ x = 2$

$∴ Primary valency = 3 ∴ x + y = 5$

TestHub · Accepted Answer

​ CrO 3 ​ = Acidic Mn 2 ​ O 7 ​ = Acidic ∴ x = 2 ​ ​ ∴ Primary valency = 3 ∴ x + y = 5 ​

Chemistry - Complete d-block Question with Solution | TestHub

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