Exams › JEE Main › Chemistry

Identify the set in which every species is an electrophile.

1. CO2, CH3(+),:CH2, Br2
2. HOH, SO3,:CCl2, Cl(+)
3. SO2, CH3-OH, NO2(+),:C(Cl)(F)
4. H-C(=O) cation, N=O cation, Ph-CH2(+),:NH3

Correct answer: CO2, CH3(+),:CH2, Br2

Solution

Electrophiles seek electrons (electron-deficient). Option 1: CO2 (electrophilic carbon), CH3(+) (carbocation),:CH2 (carbene, electron-deficient), Br2 (polarizable, acts as electrophile) - all electrophiles. Option 2 contains H2O (nucleophile). Option 3 contains CH3-OH (an alcohol, nucleophilic via O lone pair). Option 4 contains:NH3 (ammonia, a classic nucleophile). So only the first set consists entirely of electrophiles.

Related JEE Main Chemistry questions

• Lactic acid loses its optical activity when the hydroxyl group is replaced by hydrogen because
• Which is the most suitable technique for separating a mixture of sugars?
• Which statement correctly compares the staggered and eclipsed conformations of ethane?
• Which statement correctly describes a common feature shared by optical and geometrical isomerism?
• Which substituent lowers the reactivity of a benzene ring toward electrophilic substitution, yet still mainly directs a new group to the ortho and para positions?
• Among the following substances, which has the greatest affinity for a proton?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →