Which of the following is an example of a Gram-negative bacterium?

Under which one of the following conditions do real gases approach the ideal gas behaviour?

Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids,the main reason being

$A$ disc of radius $R$ and thickness $\frac{R}{6}$ has a moment of inertia $I$ about an axis passing through its centre and perpendicular to its plane. The disc is melted and recast into a solid sphere. The moment of inertia of the sphere about its diameter is

One mole of an ideal monoatomic gas $(\gamma = 5/3)$ is mixed with one mole of a diatomic gas $(\gamma = 7/5)$. What is the value of $\gamma$ for the mixture? Here,$\gamma$ denotes the ratio of specific heat at constant pressure to that at constant volume.

Which of the following molecules has the maximum dipole moment?