List of practice Questions

To a 4 litre of 0.2 M solution of NaOH, 2 litre of 0.5 M NaOH are added. The molarity of resulting solution is
To neutralize completely 20 mL of 0.1M aqueous solution of phosphorus acid $(H_3PO_3)$ the volumeof 0.1 M aqueous KOH solution required is
Vapour pressure of pure water at $298 \,K$ is $23.8 \,mm\, Hg$. $50 \,g$ of urea is dissolved in $850\, g$ of water. The vapour pressure of water for this solution and its relative lowering are respectively.
Volume of 0.1 M HCl required to react completely with 1 g equimolar mixture of $Na_2CO_3$ and $NaHCO_3$ is
What are the conditions for an ideal solution which obeys Raoult?? law over the entire range of concentration?
What is the effect of the addition of sugar on the boiling and freezing points of water ?
What is the freezing point of a solution containing 8.1 g HBr in 100 g water, assuming that the acid to be 90% ionized? $(K_f (H_2O) = 1.86 \,K \,kg\, mol^{-1})$
What is the mass percentage of carbon tetrachloride if $22\, g$ of benzene is dissolved in $122 \,g$ of carbon tetrachloride?
What is the mole fraction of glucose in $10\%\, w/W$ glucose solution?
What weight of glycerol should be added to $600\, g$ of water in order to lower its freezing point by $10 \,^?C$ ? $(K_f = 1.86^?\, C\, m^{-1})$
When a gas is bubbled through water at $298 \,K$, a very dilute solution of gas is obtained. Henry?? law constant for the gas is $100\, kbar$. If gas exerts a pressure of $1\, bar$, the number of moles of gas dissolved in $1$ litre of water is
When acetone and chloroform are mixed together, which of the following observations is correct ?
Which of the following aqueous solutions will have highest freezing point ?
Which of the following has the highest freezing point?
Which of the following will have the highest boiling point at 1 atm pressure ?
Which one of the following is a colligative property ?
Which one of the following solutions exhibits the maximum elevation in boiling point ?
Which will form maximum boiling azeotrope ?
A $5 \,kg$ collar is attached to a spring of spring constant $500 \,N \,m^{-1}$. It slides without friction over a horizontal rod. The collar is displaced from its equilibrium position by $10\, cm$ and released. The time period of oscillation is
A block is resting on a piston which is moving vertically with SHM of period 1 s. At what amplitude of motion will the block and piston separate?
A block whose mass is $1 \,kg$ is fastened to a spring. The spring has a spring constant of $100 \,N m^{-1}$. The block is pulled to a distance $x = 10 \,cm$ from its equilibrium position at $ x= 0$ on a frictionless surface from rest at $t = 0$. The kinetic energy and potential energy of the block when it is $5\, cm$ away from the mean position is
A body exectuing simple harmonic motion has maximum acceleration
A child swinging on a swing in a sitting position, stands up, then the time period of the swing will:
A closed organ pipe has length I. The air in it is vibrating in 3rd overtone with a maximum amplitude of A. Find the amplitude at a distance of $\frac{l}{14}$ from closed end of the pipe
A girl is swinging on a swing in the sitting position. If another girl comes and sits, the period of its swing will