A) \[5.65\times {{10}^{-10}}\]
B) \[6.50\times {{10}^{-12}}\]
C) \[5.65\times {{10}^{-13}}\]
D) \[5.65\times {{10}^{-12}}\]
Correct Answer: A
Solution :
Key Idea Element having higher tendency to get reduced or to accept an electron, is strong oxidising agent. Fluorine is the most electronegative element because electro negativity decreases on moving down the group. Hence, it gets reduced readily into \[{{[Cr{{(N{{H}_{3}})}_{6}}]}^{2+}}\]ion and is a strongest oxidising agent.
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