MCQ
In which of the following, the highest oxidation state is not possible?
- A[XeO6]4−
- BXeF8
- COsO4
- DRuO4
Explanation:
Xe shows +8 oxidation state in XeF8 but it does not exist because of steric hindrance of 8F atoms.
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$(i)$ $1s^22s^2p^63s^1$ $(ii)$ $1s^22s^22p^64s^1$
Which of the following statements is/are false ?
$(a)$ Energy is required to change $(i)$ to $(ii)$
$(b)$ $(i)$ represents $‘Na’$ atom
$(c)$ $(i)$ and $(ii)$ represent different elements
$(d)$ More energy is required to remove one electron from $(i)$ than $(ii)$
