What is the mixture of $MgCl_2$ and $MgO$ called?

The output $(X)$ of the logic circuit shown in the figure will be:

The number of nodal planes in a $p_x$ orbital is

$A$ hollow metal sphere of radius $5\, cm$ is charged so that the potential on its surface is $10\, V$. The potential at the centre of the sphere is.....$V$

Which of the following monosaccharides is a pentose?

If $\Delta = a^2 - (b - c)^2$ is the area of the $\triangle ABC$,then $\tan A$ is equal to