One mole of potassium dichromate completely oxidises the following number of moles of ferrous sulphate in acidic medium.

The vector diagram of current and voltage for a circuit is as shown. The components of the circuit will be

If $5 \cos x + 12 \cos y = 13$,then the maximum value of $5 \sin x + 12 \sin y$ is:

Consider a $p-n$ junction as a capacitor,formed with $p$ and $n$-materials acting as thin metal electrodes and depletion layer width acting as separation between them. Basing on this,assume that an $n-p-n$ transistor is working as an amplifier in $CE$ configuration. If $C_1$ and $C_2$ are the base-emitter and collector-emitter junction capacitances,then :

The property of hydrogen which distinguishes it from alkali metals is

Trees and shrubs have . . . . . . in their bark for gaseous exchange.