A. Sea water
B. Brass
C. Tape water
D. Graphite
E. Sand

A. haber process
B. Amonia solvay process
C. decons process
D. lead chamber process

A. Michael Faraday
B. James Maxwell
C. Yuri Gagarin
D. J.J Thomson

A. tritium
B. deuterium
C. protium
D. ortho-hydrogen

A. Internal structural changes in matter
B. Composition of matter
C. Properties of matter
D. Composition and properties of matter

A. Oxygen
B. Nitrogen
C. Hydrogen
D. None

A. Lead
B. Chromium
C. Tin
D. Zinc

A. Oxygen
B. Hydrogen
C. Nitrogen

A. An Alkalibase
B. Acid
C. Neutral
D. None

A. Oxygen
B. Helium
C. Hydrogen
D. None of these