Which from following functional groups has highest priority order for naming the poly functional compound?

Identify the product ' X ' formed in the following reaction,

Sodium ethoxide + Isopropyl chloride$\longrightarrow \mathrm{X}+$ Ethanol + Sodium chloride

Which among the following is NOT benzylic halide?

If compressibility factor of real gas is 1.05 at STP. What is molar volume of real gas?