Which of the following concentration factors is affected by a change in temperature?

Which of the following pairs of monosaccharides form sucrose?

Three rods each of length $L$ and mass $M$ are placed along $X$,$Y$,and $Z$-axes such that one end of each rod is at the origin. The moment of inertia of this system about the $Z$-axis is:

The harmonic mean of $\frac{a}{1 - ab}$ and $\frac{a}{1 + ab}$ is

If the volume of a sphere increases at the rate of $2 \pi \text{ cm}^3/\text{s}$, then the rate of increase of its radius (in $\text{cm/s}$), when the volume is $288 \pi \text{ cm}^3$, is