A. Argon
B. Neon
C. Helium
D. Carbon Dioxide

A. Hydrogen chloride
B. Carbon dioxide
C. Nitrogen oxide
D. Ammonia

A. Nitric oxide
B. Nitrogen dioxide
C. Nitrogen pentoxide
D. Nitrous oxide

A. Two Hydrogen atoms
B. One atom of Hydrogen, one atom of Oxygen
C. Two atoms of Hydrogen, one atom of Oxygen
D. One atom of Hydrogen, one atom of Oxygen

A. Hydro Chloric Acid
B. Sulphuric Acid
C. Mercury
D. Nitric Acid

A. Oxygen
B. Nitrogen
C. Water vapour
D. Carbon dioxide

A. Hydrogen
B. Oxygen
C. Sodium
D. Copper

A. Green
B. Yellow
C. Red
D. Black

A. Acid
B. Qalmi shora
C. Gandhak
D. Salt

A. Newton
B. Edison
C. Einstein
D. Marconi