The units of monosaccharides present in raffinose are

Identify the protein present in nail.

Identify the products of following reaction :

$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{COOC}_2 \mathrm{H}_5 \xrightarrow[\text { dil. } \mathrm{H}_2 \mathrm{SO}_4]{\Delta}$$

An element is found to crystallize with $$\mathrm{BCC}$$ structure having density $$8.55 \mathrm{~g} \mathrm{~cm}^{-3}$$. What is the edge length of unit cell? (At. mass of element $$=93$$)