List of practice Questions

$11^{3}-10^{3} +9^{3} -8^{3} +7^{3}-6^{3} +5^{3}-4^{3}+3^{3}-2^{3}+1^{3}= $
$(100)^{50} + (99)^{50}$
10 g of a gas at NTP occupies 5 litres. The temperature at which the volume becomes double for the same mass of gas at the same pressure is
If k is the Boltzmann cottstant, the average kinetic energy of a gas molecule at absolute temperature T is
The average kinetic energy of a molecule of a gas at absolute temperature T is propor tional to
The following four gases are at the same temperature. In which gas do the molecules have the maximum root mean square speed?
At a given temperature if $V_{rms}$ is the root mean square velocity of the molecules of a gas and $V_s$ be the velocity of sound in it, then these are related as $\left(\gamma = \frac{C_p}{C_v}\right)$
Statement 1. Boyle's law is independent of the selection of scale of temperature.$\,$ Statement 2. Boyle's law does not hold good for a gas at low temperature and high pressure.
The heat required to raise the temperature of one mole of gas by 1$^\circ$C at constant volume is $k$ times that required to raise the temperature of one mole of triatomic gas at constant pressure. What is the value of $k$ ?
The relation between volume V, pressure P and absolute temperature T of an ideal gas is $PV = x T$ where x is a constant The value of x depends upon
Method used to convert fresh ppt. into colloidal state by adding a small amount of electrolyte is
$10^{-4}$ g of gelatin is required to be added to $ 100 cm^3$ of a standard gold sol to just prevent its coagulation by the addition of $1 cm^3 of 10% NaCl$ solution to it. Hence, the gold number of gelatin is
Which one of the following is an example of heterogenous catalysis?
$1$ unified atomic mass unit $(1 \,u)$ is equal to
Blastocoel is produced in human blastocyst by secretion of
Outer extra-embryonic membrane which also forms villi is
Antifertilizin or bindin is present over the sperm in the region of
Head of human sperm is
In ovum meiosis II is completed at the time of
Spermiation is
At the end of proliferative phase the thickness of endemetrium reaches
Fructose required for activity of sperms is secreted by
Ovarian follicles occur inside
Scrotum is absent in
Acetaldehyde can be prepared by