C is a mixture of an organic and an inorganic salt. The test recorded in the table below were performed as indicated, 

(a)Copy and complete the table as appropriate. 

Test  Observation Inference
(i) C + water mixed thoroughly and filtered Partially soluble, colourless filtrate, white residue  

(ii) Portion of filtrate from (i) + NH\(_{3(aq)}\) in drops, then in excess 

White precipitate which dissolves in excess to give a colourless solution   
(iii) Portion of filtrate from (i) + NH\(_3\) in drops, then in excess White precipitate insoluble in excess   
(iv) Portion of filtrate from (i) + conc. HCl + heat  White precipitate which dissolves on warming and reappears on cooling   
(v) Portion of filtrate from (i) + conc. H\(_2\)SO\(_4\) + gentle warming Brown fumes produced on warming   
(vi) Residue from (i) + iodine solution  Blue-black colouration    
(vii) Residue from (i) + Fehling's solution + heat     
(vii) Residue from (i) + dil HCl  solution + heat + Fehling's solution     

 

(b) From the information provided and your inference, identify the compounds of C 

(c) Describe the action of heat on a solid sample of the inorganic component  Write an equation for the reaction.

(d) State what would be observed if an aqueous suspension of the organic component were heated to boiling 

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