List of practice Questions

In aqueous solutions, the solvent used is:
Brownian movement explains the \textit{property of colloidal solutions:}

S = (-1,1) is the focus, \( 2x - 3y + 1 = 0 \) is the directrix corresponding to S and \( \frac{1}{2} \) is the eccentricity of an ellipse. If \( (a,b) \) is the centre of the ellipse, then \( 3a + 2b \) is:

Calculate the variance of the data set: 1, 2, 3, 5, 8, 13, 17.
Sugar and Salt solutions are:
The dispersed phase in a colloidal solution is:
Blood is an example of:
Soda water is a solution of:
Nitrogen in soil is an example for:
Milk is a:
The particle size of the solute in true solution is:
Chalk powder in water is an example of:
A solution which has more of solute, at a given temperature than that of saturated solution is called a:
The particle size in a suspension is:
The particle size in a colloidal solution is:
Tyndall effect is produced by:
Tyndall effect is exhibited by:
A true solution does not show Tyndall effect, because of the:
The solvent used to prepare aqueous solutions is:
Solutions are classified into aqueous and non-aqueous solutions, based on:
A wire 0.5 m long and with a mass per unit length of 0.0001 kg/m vibrates under a tension of 4 N. The fundamental frequency is:
A wave along a string has the following equation \( y = 0.02 \sin [30t – 4.0x] \) m. The speed of the wave is:
A drop of water of radius 0.01 m is falling through a medium whose density is 1.21 kg/m\(^3\) and co-efficient of viscosity \( \eta = 1.8 \times 10^{-5} \, \text{Ns/m}^2 \). Then the terminal velocity of the drop is:
At temperature 'T', the 'effective' speed of gaseous hydrogen molecules (molecular weight = 2) is equal to that of oxygen molecules (molecular weight = 32) at 47°C. The value of 'T' is:
A glass bulb of volume 400 cm\(^3\) is connected to another bulb of volume 200 cm\(^3\) by means of a tube of negligible volume. The bulbs contain dry air. They are both at a common temperature and pressure of 20°C and 1.000 atm. The larger bulb is immersed in steam at 100°C; the smaller, in melting ice at 0°C. The final common pressure is: