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JEE Main 202124 FebruaryMorning Shift
Exam
JEE Main
Year
2021
Date
24 February
Shift
Morning Shift
Subject
Chemistry
Chapter
Hydrocarbons

JEE Main 2021 · 24 February · Morning Shift · Chemistry · Hydrocarbons

Which of the following compound gives pink colour on reaction with...

Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H2SO4{H}_{2}{SO}_{4} followed by treatment with NaOHNaOH?Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H _ 2 SO _ 4 followed byWhich of the following compound gives pink colour on reaction with phthalic anhydride in conc. H _ 2 SO _ 4 followed byWhich of the following compound gives pink colour on reaction with phthalic anhydride in conc. H _ 2 SO _ 4 followed byWhich of the following compound gives pink colour on reaction with phthalic anhydride in conc. H _ 2 SO _ 4 followed byWhich of the following compound gives pink colour on reaction with phthalic anhydride in conc. H _ 2 SO _ 4 followed by

Options

  1. ARoasting of sulphides gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and
  2. BRoasting of sulphides gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and
  3. CRoasting of sulphides gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and
  4. DRoasting of sulphides gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and

Correct answer

A. Roasting of sulphides gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and

Step-by-step solution

Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H _ 2 SO _ 4 followed by

The final product formed is a derivative of phenolphthalein which has Pink color in basic medium.

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