To arrive at the molecular formula and at the structural formula the different steps involved are (a) Qualitative analysis, (b) Quantitative analysis In the qualitative analysis the different steps involved are (a) Extra element detection (b) Functional group analysis In the quantitative analysis the percentage of every element is determined and then the emperical and molecular formulae are determined. Both these are followed bystructural elucidation. Which of the following tests will phloroglucinol give?

To arrive at the molecular formula and at the structural formula the d

1.	To arrive at the molecular formula and at the structural formula the different steps involved are (a) Qualitative analysis, (b) Quantitative analysis In the qualitative analysis the different steps involved are (a) Extra element detection (b) Functional group analysis In the quantitative analysis the percentage of every element is determined and then the emperical and molecular formulae are determined. Both these are followed bystructural elucidation. Which of the following tests will phloroglucinol give?
Answer» `NaHCO_(3)` test Iodoform test Oxime test with `NH_(2)OH` Cerric AMMONIUM nitrate test Solution :Phloroglucinol will show oxime test as phloroglucinol shows tautomerisum. HENCE CHOICE (c) correct (a) is wrong. Phenolic groups are not that highly acidic to show sodium bicarbonic test. (b) is wrong. Though phloroglucinol has hyperconjugative `H`- atoms in the KETO form, they are onluy 2 in number so cannot form iodoform. (d) is wrong. Only allphatic `-OH` groups will show ceric ammonium nitrate test.