MCQ
Most basic is
- A$\mathop {\ddot C}\limits^\Theta {H_3}$
- B$C{H_2} = \mathop {\ddot C}\limits^\Theta H$
- C$CH \equiv \mathop {\ddot C}\limits^\Theta $
- ✓$C{H_3} - \mathop {\ddot C}\limits^\Theta {H_2}$
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(Given ${\Delta _{fus}}H = 6\, kJ\, mol^{-1}$ at $0\,^oC$,
$C_p(H_2O, l) =75.3\, J\, mol^{-1} \, K^{-1}$ ,
$C_p(H_2O, s) = 36.8\, J\, mol^{-1} \, K^{ -1}$ )