In the following circuit,find $I_1$ and $I_2$.

Chloroethane reacts with $X$ to form diethyl ether. What is $X$?

Which of the following biomolecules is common to respiration-mediated breakdown of fats,carbohydrates and proteins?

$A$ ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation,which of the following is true?

The roots of the equation $x^3-14x^2+56x-64=0$ are in

$A$ bullet of mass $10 ~g$ is fired horizontally with a velocity $1000 ~ms^{-1}$ from a rifle situated at a height $50 ~m$ above the ground. If the bullet reaches the ground with a velocity $500 ~ms^{-1}$,the work done against air resistance in the trajectory of the bullet is : $(g=10 ~ms^{-2})$ (in $~J$)