MCQ
Which one is polar
- A$I_3^{-1}$
- B$CO_3^{-2}$
- C$XeF_4$
- ✓$PH_3$
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$Cr _2 O _7^{2-}+ XH ^{+}+6 Fe ^{2+} \rightarrow YCr ^{3+}+6 Fe ^{3+}+ ZH _2 O$
The sum of $X . Y$ and $Z$ is $.......$.
$X$ and $Y$ respectively are :
$[HCl=36.5; {(N{H_4})_2}S{O_4}=132; N{H_3}=17]$
[Given: Solubility product of $PbSO _4\left(K_{s p}\right)=1.6 \times 10^{-8}$. For $H _2 SO _4, K_{a l}$ is very large and $\left.K_{a 2}=1.2 \times 10^{-2}\right]$