MCQ
In $AsH_3$
- ALone pair is in pure $p-$ orbital
- BCentral atom shows $p^3$ hybridisation
- CLone pair is in $sp^3$ hybridised orbital
- ✓Reactivity towards $H^+$ is $NH_3 > AsH_3$
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$CH_4(g) +2O_2(g) \rightarrow CO_2(g)+2H_2O(l)\,;$ $\Delta H= -890 \,kJ$
$CO_2(g) \rightarrow C($graphite$) + O_2(g) \,;$ $\Delta H= 393 \,kJ$
$2H_2O(l) \rightarrow 2H_2(g) + O_2(g) \,;$ $\Delta H= 571 \,kJ$
$2H_2(g) \rightarrow 4H(g)\, ;$ $\Delta H= 871\, kJ$
$C($graphite$) \rightarrow C(g)\, ;$ $\Delta H= 716\, kJ$
$\begin{array}{*{20}{c}}
H\\
|\\
{ClHC = HC - C - CH = CHCl}\\
|\\
{Cl}
\end{array}$
$\left[ K _{ f } \text { of water }=1.86 \ K \ kg \ mol ^{-1}\right]$