Which of the following is a microbial insecticide?

The condition for diffraction is

The centroid of the triangle formed by the pair of straight lines $12x^2 - 20xy + 7y^2 = 0$ and the line $2x - 3y + 4 = 0$ is:

The binding energy per nucleon versus mass number curve for nuclei is shown in the figure. $W, X, Y$ and $Z$ are four nuclei indicated on the curve. The process that would release energy is

When a capacitor is connected in series to an $LR$ circuit,the alternating current flowing in the circuit

Which of the following is an example of an interstitial hydride?