MCQ
Configuration of given compound is


- A$D$
- B$L$
- C$S$
- ✓both $(B)$ and $(C)$

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Which of these structures is practically not a valid canonical structure for formaldehyde ?
${C_6}{H_6}\left( \ell \right) + \frac{{15}}{2}{O_2} \to 6C{O_2}\left( g \right) + 3{H_2}O\left( \ell \right)\,\,\,\,\Delta H = - 3271\,kJ$
What is the value of $\Delta U$ for combustion of $1.5\, mol$ benzene at $27\,^oC$ ? .....$kJ$