$A$ particle of mass $m$ and charge $q$ is placed at rest in a uniform electric field $E$ and then released. The $KE$ attained by the particle after moving a distance $y$ is

Which of the following is a heterosporous pteridophyte?

All but one of the following compounds react with aniline to give acetanilide. Which one does not?

In the given circuit, the current flowing through it is: (in $ A$)

Most acidic among the given compounds is: