Which bacteria are used in a gobar gas plant?

The ratio of angular speeds of the minute hand and the hour hand of a watch is

In which of the following compounds is the oxidation state of iodine fractional?

Which one among the following is likely to have the highest levels of $DDT$ depositions in its body?

If the number average molecular weight and weight average molecular weight of a polymer are $40000$ and $60000$ respectively,the polydispersity index of the polymer will be

$A$ mass $m$ moves with a velocity $v$ and collides inelastically with another identical mass initially at rest. After collision,the first mass moves with velocity $\frac{v}{\sqrt{3}}$ in a direction perpendicular to its initial direction of motion. The speed of the second mass after collision is: