The compound which will not give positive Tollen's test is

(i) An organic compound A with molecular formula C_(7)H_(8) on oxidation by chromyl chloride in the presence of C Cl_(4) gives a compound B which gives positive Tollen's test. The compound B on treatment with NaOH followed by acid hydrolysis gives two product C and D. C on oxidation gives B which on further oxidation gives D. the compound D on distillation with sodalime gives a hydrocarbon E. Below 60^(@)C , concentrated nitric acid reacts with E in the presence of concentrated sulphuric acid forming a compound F. identify the compounds A,B,C,D,E and F. (ii) Give chemical test to distinguish : Formaldehyde and acetaldehyde.

A compound which does not give positive test for nitrogen is: urea azobenzene glycine phenyl hydrazine.

Which compound will not give position chroyl choride test?

Which one will give positive iodoform test?

Which of the following compounds will give positive test with Tollen's reagent?