Consider following compounds and decide as to which of the following statements is true ?

Options

A. (II) gives no reaction with Na metal, however, 1 mole of (IV) on reaction with Na metal will liberate 22.4 litres of `H_2` gas at STP
B. (I) will give brisk efferverscence on addition of `NaHCO_3` but will not being any change in the colour of Br water
C. (III) liberates `H_2` gas with Na metal gives white precipitate with Tollen's reagent but does not respond towards lucas reagent or 2,4-DNP test
D. (IV) gives turbidity with anhydrous `ZnCl_2`

Answer

C

Explanation