MCQ
In the conversion $B{r_2}\, \to \,BrO_3^ - ,$ the oxidation state of bromine changes from
- A$-1 $ to $ -1$
- B$0 $ to $-1$
- ✓$0 $ to $+ 5$
- D$0$ to $- 5$
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$(a)$ Effective nuclear charge for nitrogen is $3.90$
$(b)$ $IP$ of $Ne$ is more than $Na^+$
$(c)$ Order of electron negativity $sp > sp^2 > sp^3$
$(d)$ Order of acidic character $NH_3 < PH_3 < AsH_3$
