Analyze the image and extract the data

Based on the image, here's a list of the chemical formulas visible:

• SO3
• K2SiO3
• H2SiO3
• SiO2
• OsO4
• H2SO4
• HBr
• BaS
• HF
• Al2O3
• NO2
• K2Cr2O7
• Ca(MnO4)2

It also shows a multiple-choice style layout with radio buttons next to each formula. The radio button next to H2SO4 is already selected.