What is the position of transition elements from $$\mathrm{Sc}$$ to $$\mathrm{Zn}$$ in long form of periodic table?

Which from following elements is most abundant on earth?

What is the volume of 1 mole real gas at STP $$\left(V_0=22.4 \mathrm{~dm}^3\right)$$, if compressibility factor of real gas is 1.1 at STP?

Identify the product obtained when isopropyl bromide is reacted with metallic sodium in dry ether.