Chemistry MCQs

Correct answer A. Polyvinyl chloride

Correct answer A. Atoms

Correct answer A. France

Correct answer B. Electrons

Correct answer C. Two Protons and two Neutrons

Correct answer D. None

Correct answer A. Copper and Tin

Correct answer B. Atomic (proton) number

Correct answer A. Loss of Electrons

Correct answer B. Highly elliptical

Correct answer B. Oxygen

Correct answer A. Hydrogen

Correct answer D. Tetrafluoroethane (R-134a)

Correct answer D. Becquerel

Correct answer C. Same atomic number and different atomic weight

Correct answer A. Silicon Dioxide

Correct answer A. Atomic number

Correct answer B. Chlorofluorocarbons

Correct answer B. Nucleic acids

Correct answer C. Nitrogen + Oxygen