The oxidation number of $C$ in $HNC$ is .......

What is the correct order of stability for the superoxides?

If you are asked to classify the various algae into distinct groups,which of the following characters should you choose?

$A$ body is moving up an inclined plane of angle $\theta$ with an initial kinetic energy $E$. The coefficient of friction between the plane and the body is $\mu$. The work done against friction before the body comes to rest is

$A$ piece of copper and another of germanium are cooled from room temperature to $80\,K$. Which of the following is a correct statement?

In which plant group is the structure shown below found?