[" A white crystalline solid 'X' give following chemical "],[" test: "],[" (i) it liberates "CO_(2)" with "NaHCO_(3)],[" (ii) it form a coloured dye on diazotisation and "],[" coupling with "beta" -naphthol "],[" (iii) with "Br_(2)" water it forms white precipitate of "],[2,4,6" -tribromo aniline."],[^ prime X'" can be identified as: "]