Trichloroacetaldehyde was subjected to Cannizzaro’s reaction by using NaOH. The mixture of the products contains sodium trichloroacetate and another compound. The other compound is :

The outer electron configuration of $$Gd$$ (Atomic No. $$64$$) is :

Outer electronic configuration of Gd (Atomic no : 64) is -

The presence or absence of hydroxyl group on which carbon atom of sugar differentiates RNA and DNA ?