D And F Block Elements Question 21
Question 21 - 2024 (31 Jan Shift 2)
In the reaction of potassium dichromate, potassium chloride and sulfuric acid (conc.), the oxidation state of the chromium in the product is $(+)$
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Answer (6)
Solution
$K _2 Cr _2 O _7(s)+4 KCl(s)+6 H _2 SO _4$ (conc.) $\rightarrow 2 CrO _2 Cl _2(g)+6 KHSO _4+3 H _2 O$
This reaction is called chromyl chloride test.
Here oxidation state of $Cr$ is +6.
