- AResonance
- BHyperconjugation
- ✓Hydrogen bonding
- DSteric hindrence
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Reason : Osmotic pressure is a colligative property.
[At $45^{\circ} \mathrm{C}$ vapour pressure of benzene is $280\, \mathrm{~mm} \,\mathrm{Hg}$ and that of octane is $420\, \mathrm{~mm} \,\mathrm{Hg}$. Assume Ideal gas]
$2 X + Y \xrightarrow{i} P$
the rate of reaction is $\frac{ d [ P ]}{ dt }=k[ X ]$. Two moles of $X$ are mixed with one mole of $Y$ to make $1.0 L$ of solution. At $50 s , 0.5$ mole of $Y$ is left in the reaction mixture. The correct statement(s) about the reaction is(are)
(Use: $\ln 2=0.693$ )
$(A)$ The rate constant, $k$, of the reaction is $13.86 \times 10^{-4} s ^{-1}$.
$(B)$ Half-life of $X$ is $50 s$.
$(C)$ At $50 s ,-\frac{ d [ X ]}{ dt }=13.86 \times 10^{-3} mol L ^{-1} s ^{-1}$.
$(D)$ At $100 s ,-\frac{ d [ Y ]}{ dt }=3.46 \times 10^{-3} mol L ^{-1} s ^{-1}$.
$X + \frac{1}{2}{O_2}\,\, \to \,\,XO + 90.8\,kJ$
It follows that the heat of reaction for the following process $M + XO$ $\rightleftharpoons$ $MO + X$ is given by......$kJ$