The number of radial nodes of $3s$ and $2p$ orbitals respectively are

What is obtained from yeast?

Which of the following molecules has the highest dipole moment?

If $dx + dy = (x + y)(dx - dy)$,then $\log(x + y)$ is equal to

$A$ small square loop of wire of side $l$ is placed inside a large square loop of side $L$ $(L \gg l)$. If the loops are coplanar and their centres coincide,the mutual inductance of the system is directly proportional to :

What is the probability of a couple having four sons?