MCQ
$\mathrm{Ge}(\mathrm{Z}=32)$ in its ground state electronic configuration has $\mathrm{x}$ completely filled orbitals with $\mathrm{m}_{l}=0$. The value of $\mathrm{x}$ is ..... .
- A$4$
- B$6$
- C$5$
- ✓$7$
$=1+1+1+1+1+1+1$
$=7$
So Answer is $7$
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For the reaction $3 CaO +2 Al \rightarrow 3 Ca + Al _{2} O _{3}$ the standard reaction enthalpy $\Delta_{ r } H ^{0=}$ .......... $kJ$.
(Round off to the Nearest Integer).

$CH_4\,(g)\,\,186.2\,JK^{-1}\,mol^{-1}$
$O_2\,(g)\,\,205.2\,JK^{-1}\,mol^{-1}$
$CO_2\,(g)\,\,213.6\,JK^{-1}\,mol^{-1}$
$H_2O\,(g)\,\,69. 9\,JK^{-1}\,mol^{-1}$
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