MCQ
Which molecule does not show zero dipole moment
- A$B{F_3}$
- ✓$N{H_3}$
- C$CC{l_4}$
- D$C{H_4}$
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${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(g)$ is $\Delta {H_1}$ and that of
${H_2}(g) + \frac{1}{2}{O_2}(g) \to {H_2}O(l)$ is $\Delta {H_2}$. Then