JEE Main On 8 April 2017 Question 14
Question: The pair of compounds having metals in their highest oxidation state is : [JEE Online 08-04-2017]
Options:
A) $ Mn{O_2}andCr{O_2}C{l_2} $
B) $ {{[\text{ Fe(CN}{{)}_6}]}^{\text{3-}}}and,{{[\text{ Cu(CN}{{)}_4}]}^{\text{2-}}} $
C) $ {{[NICl _4]}^{2-}}and{{[CoCl _4]}^{2-}} $
D) $ {{[\text{ FeC}{l_4}]}^{-}}andC{o_2}{O_3} $
Show Answer
Answer:
Correct Answer: A
Solution:
- $ MnO _2=+4 $ $ CrO _2Cl _2=+6 $
