Multiple choice

Which of the following produces reddish brown precipitate?

  1. Formic acid and tollen reagent

  2. Formic acid and fehling solution

  3. 2-pentanone is catalysed by I2+NaOH/NaOI

  4. 3-pentanone

  5. Only option (3) and (4)

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This option is correct because formic acid and Fehling solution react to produce cuprous oxide, which gives reddish brown precipitate.