MCQ
Which one is a Lewis acid
- ✓$Cl{F_3}$
- B${H_2}O$
- C$N{H_3}$
- DNone of these
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(Given) $\Delta H^o_f (CaCO_3,s) = -1207 \, \frac{kJ}{mol}$
$\Delta H^o_f \,(CaO,s) = -635 \,kJ/mol$
$\Delta H^o_f \,(CO_2.g) = -394 \,kJ/mol$
(Molar mass of $Na_2CO_3 = 106\ g\ mol^{-1} )$

