28004 The reaction of \(HCOOH\) with conc. \({H_2}S{O_4}\) gives
(b) \(HCOOH\xrightarrow{{conc.\,{H_2}S{O_4}}}CO + {H_2}O\)
28005 Sulphonation of benzoic acid produces mainly
(b)
28006 Which one is strongest acid
(d)\(CH{F_2} - COOH\). Difluoroacetic acid is strongest because presence of two \(F\) atoms increases its acidic nature.
28007 Which does not give silver mirror with ammoniacal \(AgN{O_3}\)
(c) \(C{H_3}COOH\) does not give silver mirror test.
