The number of linkage groups in $Pisum$ $sativum$ is:

If a hydrogen electrode is dipped in two solutions of $pH = 3$ and $pH = 6$ and a salt bridge is connected,the $emf$ of the resulting cell is .......... $V$.

The area (in square units) of the circle which touches the lines $4x + 3y = 15$ and $4x + 3y = 5$ is

$Neophron$ (vulture) and $Locusta$ (locust) show similarities with respect to the presence of

If the magnitude of average speed and average velocity over an interval of time are the same,then:

If $z=1+i\sqrt{3}$,then $|\operatorname{Arg} z|+|\operatorname{Arg} \bar{z}|$ is equal to