MCQ
Which of the following has second ionisation potential less than expected
- A$Cr$
- ✓$Zn$
- C$V$
- D$Mo$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| LIST - I (Classification of molecules,based on octet rule) | LIST - II (Example) | ||
| A. | Molecules obeying octet rule | I. | NO,NO_(2) |
| B. | Molecules with incomplete octet | II. | BCl_(3),AlCl_(3) |
| C. | Molecules with incomplete octet with odd electron | III. | H_(2)SO_(4),PCl_(5) |
| D. | Molecules with expanded octet | IV. | CCl_(4),CO_(2) |
$CH_4\,(g)\,\,186.2\,JK^{-1}\,mol^{-1}$
$O_2\,(g)\,\,205.2\,JK^{-1}\,mol^{-1}$
$CO_2\,(g)\,\,213.6\,JK^{-1}\,mol^{-1}$
$H_2O\,(g)\,\,69. 9\,JK^{-1}\,mol^{-1}$
The entropy change $(\Delta S^o)$........$JK^{-1}\,mol^{-1}$ for the reaction
$CH_4\,(g) + 2O_2\,(g) \to CO_2\,(g) + 2H_2O(l)$ is
$Pt(s)|Cl_2(g)|Cl^-(aq)||Ag^+(aq)|Ag(s)$
$\begin{array}{*{20}{c}}
{C{H_2} = CHC{H_2}CHC{H_3} + KOH\xrightarrow[{heat}]{{{\text{alcohol}}}}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$