The electric current $i$ in the circuit shown is (in $A$)

The electric potential $V$ at any point $(x, y, z)$ (all in $m$) in space is given by $V = 4x^2 \, V$. The electric field at the point $(1 \, m, 0, 2 \, m)$ in $V/m$ is:

Which of the following is a Lewis acid?

$A$ uniform rod of mass $M$ and length $L$ is placed on a smooth horizontal surface. $A$ particle of mass $m$ moving with velocity $v$ strikes the rod at one end perpendicular to the rod. After the collision,the particle comes to rest. The velocity of the centre of mass of the rod after the collision is:

The $IUPAC$ name of $(CH_3)_2CH-CH_2-CH_2Br$ is

If $(-2, 6)$ is the image of the point $(4, 2)$ with respect to line $L = 0$,then $L =$