Chemistry - GOC Question with Solution | TestHub

Removing H₁ gives the alkoxide next to the CF₂ group :

Removing H₂ gives the alkoxide next to the two methyl groups :

Both charges are on oxygen with no resonance, so compare induction : the two fluorine atoms withdraw electron density and stabilise the nearby negative charge, while the two methyl groups donate electron density and destabilise it. The first alkoxide is more stable, so H₁ is more acidic.