The edible part of a tomato is . . . . . . .

If the pair of straight lines $xy-x-y+1=0$ and the line $ax+2y-3a=0$ are concurrent,then $a$ is equal to

Under which one of the following conditions do real gases approach the ideal gas behaviour?

Among the second period elements,the actual ionization enthalpies are in the order $Li < B < Be < C < O < N < F < Ne$. Explain why:
$(i)$ $Be$ has higher $\Delta_{i}H$ than $B$.
$(ii)$ $O$ has lower $\Delta_{i}H$ than $N$ and $F$.

The chemical entities present in the thermosphere of the atmosphere are:

In a gene bank,in what form is the genetic material stored?