JEE MAIN - Chemistry (2021 - 16th March Evening Shift - No. 9)
Fex2 and Fey3 are known when x and y are :
x = F, Cl, Br, I and y = F, Cl, Br, I
x = F, Cl, Br and y = F, Cl, Br, I
x = F, Cl, Br, I and y = F, Cl, Br
x = Cl, Br, I and y = F, Cl, Br, I
Explanation
FeI3 does not exist as Iā reduces Fe3+ to Fe2+.
2Fe3+ + 2I ā $$ \to $$ 2Fe2+ + I2.
2Fe3+ + 2I ā $$ \to $$ 2Fe2+ + I2.
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