Which endangered animal is the source of the world's finest, lightest, warmest, and most expensive wool-the Shahtoosh?

Which of the following is the weakest base?

$A$ vessel has $6 \ g$ of oxygen at pressure $P$ and temperature $400 \ K$. $A$ small hole is made in it so that oxygen leaks out. How much oxygen leaks out if the final pressure is $\frac{P}{2}$ and temperature is $300 \ K$ (in $g$)?

The $P-V$ diagram of $2\,g$ of helium gas for a certain process $A \to B$ is shown in the figure. What is the heat given to the gas during the process $A \to B$ (in $P_0V_0$)?

The shedding of leaves,flowers,or fruits due to a change in the hormonal balance in a plant is referred to as:

Which one of the following oxides is expected to exhibit paramagnetic behaviour?