List of top Chemistry Questions on Solutions asked in WBJEE

63g of a compound (Mol.Wt.=126) was dissolved in 500g of distilled water.The density of the resultant solution is 1.126g/ml. The molarity of the solution is

A solution containing 4g of polymer in a 4.0-litre solution at 27°C shows an osmotic pressure of 3.0×10^-4 atm. The molar mass of the polymer in g/mol is

Pick the correct statement:

At a certain temperature, the value of the slope of the plot of osmotic pressure $(\pi)$ against concentration $\left(C\right.$ in $mol\, L ^{-1}$ ) of a certain polymer solution is $291\, R$. The temperature at which osmotic pressure is measured, is $(R$ is gas constant)

To observe an elevation of boiling point of $0.05^?C$, the amount of solute (Mol. $Wt. = 100$) to be added to $100\, g$ of water $(K_b=0.5)$ is

$58.4\, gm$ of $NaCl$ and $180\,gm$ of glucose were separately dissolved in $1000 \,mL$ of water. Identify the correct statement regarding the elevation of boiling point ($b.pt$) of the resulting solutions.

Which of the following solutions is an example of negative deviation from Raoult�s law?

Which of the following type of compound is used to increase the hardness of the silicone polymer.

Among the following complex compounds–${\mathrm{K}}_3[\mathrm{Fe}(\mathrm{CN}{)}_6]$$(i)$$\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_6\right]{\mathrm{Cl}}_3$(ii) ${\mathrm{K}}_2[\mathrm{Pt}(\mathrm{CN}{)}_4]$$(\mathrm{iii})$$\left[\mathrm{Zn}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]{\left({\mathrm{NO}}_3\right)}_2$$(iv)$diamagnetic complexes are –

In OF2, H2O and OCl2, there is sp³ hybridisation of central atom. The bond length and bond angle of OF2, H2O and OCl2 are given as:

Which of the following is the correct statement about the differences in the bond angles of the compounds given above?

Equal volumes of molar hydrochloric acid and sulphuric acid are neutralised by dilute NaOH solution and x kcal and y kcal of heat are liberated respectively.  Which of the following is true?

The reaction that takes place when Cl2 gas is passed through conc. NaOH solution is : 

What will happen to the volume of a bubble of air found under water in a lake, where the temperature is 15^oC and the pressure is 1.5 atm, if the bubble rises to the surface where the temperature is 25^oC and the pressure is 1.0 atm?

Which of the following is the hydrophobic synthetic acrylate polymer that has glass-transition temperature of about 10°C?