MCQ
Which does not give silver mirror with ammoniacal $AgN{O_3}$
- A$HCHO$
- B$C{H_3}CHO$
- ✓$C{H_3}COOH$
- D$HCOOH$
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(At. No. $Cr = 24, Mn = 25, $$Fe = 26, Ni = 28$)