JEE Main 2025 · ChemistryMultiple choiceDiagram basedEasyApplication

JEE Main 7 April 2025, Shift 1, Chemistry Q68

Question 68 of 75 in this shift, Chemistry question 18 of 25, Section A.

Which of the following compounds is least likely to give effervescence of

\mathrm{CO_2}

in presence of aq.

\mathrm{NaHCO_3}

The figure, in words

Options are structures: p-nitrobenzoic acid, anilinium chloride (Ph-NH3+ Cl-), m-nitrophenol and picric acid (2,4,6-trinitrophenol).

(1)[figure: 4-nitrobenzoic acid, benzene ring with COOH and para NO2]
(2) $\mathrm{Ph-\overset{(+)}{N}H_3\ \overset{(-)}{Cl}}$ (anilinium chloride)
(3)[figure: 3-nitrophenol, benzene ring with OH and meta NO2]Official answer
(4)[figure: 2,4,6-trinitrophenol, benzene ring with OH and three NO2 groups at 2, 4, 6 positions]

Official answer

Option 3

NTA final key.

Same idea in other shifts