MCQ
Ethylene di bromide on heating with metallic sodium in ether solution yields
- AEthene
- BEthyne
- ✓$2-$ butene
- D$1-$ butene

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Given : $K_f (H_2O)$ = $2\ K\ kg\ mole^{-1}$, $K_{sp} (PbCl_2)$ = $4 × 10^{-6}$
(Assume molarity to be equal to molality) .....$^oC$
The temperature at which $K _{ C }=20.4$ and $K _{ P }=600.1,$ is ....... $K$. (Round off to the Nearest Integer).
[Assume all gases are ideal and $R =0.0831\, L\,bar \, K ^{-1} mol ^{-1}]$