MCQ
Complexes $[Co(NH_3)_5SO_4]Br$ and $[Co(NH_3)_5Br]SO_4$ can be distinguished by
- Aconductance measurement
- Busing $BaCl_2$
- Cusing $AgNO_3$
- ✓all
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Reason : $Six F$ atoms in $SF_6$ prevent the attack of $H_2O$ on sulphur atom of $SF_6$.


$(i)\,\,N{O_2}\,\xrightarrow{{slow}}\,NO + O$
$(ii)\,\,{F_2} + O + NO\,\xrightarrow{{fast}}\,N{O_2}F + F$
$(iii)\,\,F + N{O_2}\,\xrightarrow{{fast}}\,N{O_2}F$
Select the correct one