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List of top Chemistry Questions on Solutions asked in AIEEE

Liquids A and B form an ideal solution at 30°C, the total vapour pressure of a solution containing 1 mol of A and 2 mol of B is 250 mmHg. The total vapour pressure becomes 300 mmHg when 1 more mol of A is added to the first solution. The vapour pressures of pure A and B at the same temperature are

The concentrated sulphuric acid that is peddled commercial is 95% $H_2SO_4$ by weight. If the density of this commercial acid is $1.834\, g$ $cm^{-3}$, the molarity of this solution is
A 5% solution of cane sugar (molar mass 342) is isotonic with 1% of a solution of an unknown solute. The molar mass of unknown solute in g/mol is:
If sodium sulphate is considered to be completely dissociated into cations and anions in aqueous solution, the change in freezing point of water $\left(\Delta T_{f}\right)$, when $0.01\, mol$ of sodium sulphate is dissolved in $1\, kg$ of water, is $(K_f = 1.86\, K\, kg\, mol^{-1})$
On mixing, heptane and octane form an ideal solution. At $373\, K$, the vapour pressures of the two liquid components (heptane and octane) are $105 \,kPa$ and $45\, kPa$ respectively. Vapour pressure of the solution obtained by mixing $25.0\,g$ of heptane and $35\, g$ of octane will be (molar mass of heptane $= 100\, g \,mol^{-1}$ and of octane $= 114\, g \,mol^{-1}$).
Two liquids $X$ and $Y$ form an ideal solution. At $300\,K$, vapour pressure of the solution containing $1 \,mol$ of $X$ and $3\,mol \,of\, Y$ is $550 \,mm\, Hg$. At the same temperature, if $1\, mol$ of $Y$ is further added to this solution, vapour pressure of the solution increases by $10\, mm \,Hg$. Vapour pressure ($in\, mm\,Hg$) of $X$ and $Y$ in their pure states will be, respectively :
Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1 M is 100 $\Omega$. The conductivity of this solution is $1.29 S m^{-1}.$. Resistance of the same cell when filled with 0.2 M of the same solution is 520 $\Omega$. The molar conductivity of 0.02 M solution of the electrolyte will be:
A $5 .25\%$ solution of a substance is isotonic with a $1.5\%$ solution of urea (molar mass = $60 \,g \,mol^{-1})$in the same solvent. If the densities of both the solution are assumed to be equal to $1.0 \,g \,cm^{-3}$ molar mass of the substance will be
A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of $290\, mm$ at $300\, K$. The vapour pressure of propyl alcohol is $200\, mm$. If the mole fraction of ethyl alcohol is $0.6$, its vapour pressure (in mm) at the same temperature will be
When 20 g of naphthoic acid ($C_{11}H_8O_2$) is dissolved in 50 g of benzene (K$_f = 1.72 K kg mol^{-1}$), a freezing point depression of 2 K is observed. The van-t Hoff factor (i) is
Equimolar solutions in the same solvent have :
If a is the degree of dissociation of $Na_2SO_4$, the van?t Hoff factor (i) used for calculating the molecular mass is :

Which of the following liquid pairs shows a positive deviation from Raoult's law?

For which of the following parameters the structural isomers $C_2H_5OH$ and $CH_3OCH_3$ would be expected to have the same values? (Assume ideal behaviour)
A pressure cooker reduces cooking time for food because :

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