MCQ
Which of the following is correct?
- A
- B
- C
- D
Explanation:
A general correlation useful for understanding the stabilities of molecules is that, with increase in bond order, bond enthalpy increases and bond length decreases. Stability increases with increase in bond order and bond enthalpy.
Therefore, $\text{Stability}\propto\text{bond order}\propto\text{bond enthalpy.}$ Stability increases with decrease in bond length. Therefore,
$\text{Stability}\propto\frac{1}{\text{bond length}}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$C{H_4}(g) + 2{O_2}(g) \to C{O_2}(g) + 2{H_2}O(l)$ ;
${\Delta _r}{H_{300}} = - 212.7\ Kcal / mol$ .
The absolute value of ${\Delta _r}U_{300}^o$ for this reaction is .......$Kcal\,/\,mol$ $(R = 2\ cal/mol-K)$
$\begin{array}{*{20}{c}}
{C{H_3} - C{H_2} - C - COOH} \\
{\,\,\,\,\,\,\,\,||} \\
{\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}}
\end{array}$
is :