MCQ
Alkane which is liquid at room temperature is:
- AC2H6
- BC3H8
- CC4H10
- DC8H18
Explanation:
Alkane from C1 − C4 are gases.
Alkane from C5 − C17 are liquids.
Alkane from C18 onwards is solids.
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For the given reaction, if the initial pressure is $450\,mm Hg$ and the pressure at time $t$ is $720\,mm\,Hg$ at a constant temperature $T$ and constant volume $V$. The fraction of $A ( g )$ decomposed under these conditions is $x \times 10^{-1}$. The value of $x$ is $......$.(nearest integer)
$\left[\mathrm{PtCl}_{4}\right]^{2-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons\left[\mathrm{Pt}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}_{3}\right]^{-}+\mathrm{Cl}^{-}$
was measured as a function of concentrations of different species. It was observed that
$\frac{-\mathrm{d}\left[\left[\mathrm{PtCl}_{4}\right]^{2-}\right]}{\mathrm{dt}}=4.8 \times 10^{-5}\left[\left[\mathrm{PtCl}_{4}\right]^{2-}\right]-2.4 \times10^{-3}\left[\left[\mathrm{Pt}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}_{3}\right]^{-}\right]\left[\mathrm{Cl}^{-}\right]$
where square brackets are used to denote molar concentrations. The equilibrium constant $\mathrm{K}_{\mathrm{c}}=....$. (Nearest integer)