Question 1 :
Which characterizes the weak intermolecular forces of attraction in a liquid?
Question 2 :
Solubility of solutes which dissolve with the liberation of heat decreases with :
Question 3 :
The vapour pressure of pure benzene and toluene at a particular temperature are {tex} 100 \mathrm { mm } {/tex} and {tex} 50 \mathrm { mm } {/tex} respectively. Then the mole fraction of benzene in vapour phase in contact with equimolar solution of benzene and toluene is
Question 4 :
The vapour pressure of pure liquid is 1.2 atm. When a non-volatile substance <i>B</i> is mixed in <i>A</i>, then its vapour pressure becomes 0.6 atm. The mole fraction of <i>B</i> in the solution is
Question 6 : In countries nearer to polar region, the roads are sprinkled with <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead68fc6694ca4eac0fcc57"> . This is
Question 7 :
Binary liquid mixtures which exhibit positive deviations from Raoults law boil at. temperature than the expected b. p.:
Question 9 :
The condition under which Nernst distribution law will not hold true is :
Question 10 :
The statement the relative lowering of the vapour pressure is equal to th ratio ot moles of the solute to the total number of the moles in the solution refers to
Question 12 :
In a mixture of <i>A</i> and <i>B</i>, components show negative deviation when
Question 13 :
When {tex} \mathrm { CuSO } _ { 4 } {/tex} is added to a solution of ammonia
Question 14 :
Osmotic pressure of 0.4% urea solution is 1.60 atm and that of 3.42% cane sugar is 2.46 atm. When the above two solutions are mixed, the osmotic pressure of the resulting solution is
Question 15 :
Binary liquid solutions which exhibit negative deviations from Raoult's law boil at temperature .than the expected value :
Question 17 :
100 mL of water and 50 mL ether mixture is shaken with succinic acid. At equilibrium ether layer contains 0.127 g and water layer contains 1.843 g of succinic acid. The partition coefficient of succinic acid in favour of water is :
Question 18 :
A super saturated solution is a metastable state of solution in which solute concentration.
Question 19 :
At a particular temperature, the vapour pressures of two liquids {tex} \mathrm { A } {/tex} and {tex} \mathrm { B } {/tex} are respectively {tex}120{/tex} and {tex} 180 \mathrm { mm } {/tex} of mercury. If 2 moles of {tex} \mathrm { A } {/tex} and 3 moles of B are mixed to form an ideal solution, the vapour pressure of the solution at the same temperature will be (in mm of mercury)
Question 20 : The vant Hoff factor <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead68fb41e6ca4117818cde"> for a compound which undergoes dissociation in one solvent and association in other solvent is respectively :
Question 22 :
The melting point of most of the solid substances increase with an increase of pressure acting on them. However, ice melts at a temperature lower than its usual melting point, when the pressure increase. This is because :
Question 23 :
Distribution law holds good for the distribution of a dissolved substance between :
Question 25 :
Sodium sulphate is soluble in water, while barium sulphate is sparingly soluble because :
Question 27 :
One mole of non-volatile solute is dissolved in two mole of water. The vapour pressure of the solution relative to that of water is :
Question 28 :
A 5% solution of sugarcane (mol. wt. = 342) is isotonic with 1% solution of <i>X</i> under similar conditions. The molecular weight of <i>X</i> is
Question 29 : 0.004 M <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead68f386ab836963763fbb"> is isotonic with 0.01 M glucose.Degree of dissociation of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead687841e6ca4117818bda"> is
Question 31 :
Ratio of solubilities of gases $N_2$ & $O_2$ in water from air at $25^o$ & 1 atm will be if air is 20% by volume of $O_2$ and 80% by volume of $N_2$.<br/>Given : $K_H (N_2) = 2 \times 10^4\ atm$ <br/>             $K_H (O_2) = 10^4\ atm$<br/>
Question 32 :
Assertion: The vapour pressure of an aqueous solution of sucrose is less than $1.013$ bar at $373.15K$.
Reason: Vapour pressure of water is $1.013$ bar at $373.15K$.
Question 33 :
At $30^{\circ}C$, the solubility of $Ag_{2}CO_{3}(K_{sp} = 8\times 10^{-2})$ will be maximum in:
Question 36 :
Which characteristics the weak inter molecular forces of attraction in a liquid?
Question 37 :
$3$ moles of $P$ and $2$ moles of $Q$ are mixed, what will be their total vapour pressure in the solution if their partial vapour pressures are $80$ and $60$ torr respectively?
Question 38 :
Solubility of which among the following substances in water increases slightly with rise in temperature?
Question 39 :
A liquid A and B form an ideal solution. If vapour pressure of pure A and B are $500N{ m }^{ -2 }$ and $200N{ m }^{ -2 }$ respectively, the vapour pressure of a solution of A and B containing 0.2 mole fraction of A would be:
Question 40 :
$H_2S$ is a toxic gas used in qualitative analysis. If solubility of $H_2S$ in water at $STP$ is $0.195$ m. what is the value of $K_H$?
Question 41 :
Choose the correct statement with respect to the vapour pressure of a liquid among the following.
Question 42 :
For an ideal solution with ${p}_{A}^o>{p}_{B}^o$, which of the following is true?
Question 43 :
A salt which in solution gives a bluish white precipitate with $NaOH$ solution and a white precipitate with $BaCl_{2}$ solution is:
Question 44 :
A china dish weighs 25 g when empty. When a saturated solution of potassium chloride is poured into it at 40$^o$C, the weight of the dish is 63 g. When the solution is totally evaporated, the chine dish along with the crystals weighs 40 g. Find the solubility of potassium chloride at 40$^0$C.
Question 45 : For a given liquid at a given temperature vapour pressure is given by:<div><br/>$\;\;\;log_{10}P\:(mm)\,=\,\displaystyle-\frac{400(K)}{T}+10$</div><div><br/>Vapour pressure of the liquid at $400\:K$ is:</div>
