The compound formed on heating chlorobenzene with chloral in the presence of concentrated sulphuric acid is:

For the given logic circuit,find the output $Y$ in terms of inputs $A$ and $B$.

If $\int \frac{e^x-1}{e^x+1} d x=f(x)+c$,then $f(x)$ is equal to

Leaf abscission,fruit fall,and bud dormancy occur due to which phytohormone?

Which of the following plants produces seeds but not flowers?

If the lines,joining the origin to the points of intersection of the curve $2x^2 - 2xy + 3y^2 + 2x - y - 1 = 0$ and the line $x + 2y = k$,are at right angles,then $k^2$ equals