What is the percentage dissociation of 0.8 ml of Acetic acid (density is $1.04 \mathrm{~g} / \mathrm{ml}$ ) which is dissolved in 1.2 L of water if the observed Depression in freezing point is 0.0228 K ? ( $\mathrm{K}_{\mathrm{f}}$ for water $=1.86 \mathrm{Kkg} / \mathrm{mol}$.)
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9
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10
A compound with molecular formula $\mathrm{C}_5 \mathrm{H}_{10}$ that gives acetone on ozonolysis is:
2-methyl-2-butene
2-methyl-1-butene
3-methyl-1-butene
Cyclopentane
Consider the gaseous equilibrium
$2 \mathrm{AB}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{AB}_{(\mathrm{g})}+\mathrm{B}_{2(\mathrm{~g})}$
The expression relating the degree of dissociation ( $\alpha$ ) and equilibrium constant ( $K_p$ ) and total pressure $P$ is:
$\left(\frac{2 K_p}{P}\right)^2$
$\left(\frac{K_p}{2 P}\right)^{1 / 2}$
$\left(\frac{K_p}{2 P}\right)^{1 / 3}$
$\left(\frac{2 K_p}{P}\right)^{1 / 3}$
Which one of the following statements is wrong?
Anisole reacts with Ethanoyl chloride / anhydrous $\mathrm{AlCl}_3$ in $\mathrm{CS}_2$ to form 4-Methoxyacetophenone in larger amount
Isopropyl methyl ether reacts with Conc. HI to produce isopropyl alcohol and methyl iodide by $\mathrm{S}_{\mathrm{N}} 2$ mechanism
Tert. butyl methyl ether reacts with Conc. HI on heating to form 2-lodo-2-methylpropane and Methanol by $\mathrm{S}_{\mathrm{N}} 1$ mechanism
Anisole is prepared by reaction between Bromobenzene and Sodium methoxide
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