MCQ
Which of the following has the lowest solubility
- ✓$Ca{F_2}$
- B$CaC{l_2}$
- C$CaB{r_2}$
- D$Ca{I_2}$
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$E_a\ (Kcal/mol)\,||$ Temp. Change $(K)$
$(I)$ $40\,||\,200\, -\, 210$
$(II)$ $80\,||\,200 \,-\, 210$
$(III)$ $40\,||\,300\, -\, 310$
$(IV)$ $80\,||\,300\, -\, 310$
(Given $\ln 10=2.3, R =8.3 JK ^{-1} mol ^{-1}, \log 2=0.30$ )