Which of the following is a major source of protein?

If $2 x^2-3 x y+y^2+x+2 y-8=0$, then $\frac{d y}{d x}$ is equal to

Apart from tetrahedral geometry,another possible geometry for $CH_4$ is square planar with the four $H$ atoms at the corners of the square and the $C$ atom at its centre. Explain why $CH_4$ is not square planar?

Which one of the following removes temporary hardness of water?

Jumping genes are found in:

Which of the following is incorrectly matched?