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MODEL PAPER 7 — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryMODEL PAPER 71 Mark
MCQ
Methyl ketones are usually characterized by:
  • A
    Benedict's reagent
  • ✓
    Iodoform test
  • C
    Schiff's test
  • D
    Tollen's reagent
✓

Answer

Correct option: B.
Iodoform test
(b) Iodoform test
Explanation: $CH _3 COR + I _2+ NaOH \rightarrow CHI _3+ RCOO ^{-} Na ^{+}$
Iodoform test is a characteristic test given by methyl ketones. CHI formed is yellow precipitate.

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