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A. Atomic Number
B. Chemical Properties
C. Physical Properties
D. Atomic Properties

A. Coke
B. peat
C. Coal tar
D. Liquefied Petroleum Gas

S. Photo respiration
B. Photolysis
C. Light and oxygen induced breakdown
D. All of the above

A. Zenon
B. Argon
C. Helium
D. Chlorine

A. Boyle-Pascal's Law
B. Pascal's Law
C. Archimedes' Principle
D. None of the above

A. Chemical decomposition
B. Physical decomposition
C. Biological decomposition
D. All of the above

A. Carbon dioxide only
B. A mixture which has more carbon dioxide than oxygen
C. A mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage
D. A mixture of carbon dioxide and nitrogen

A. Alcohol
B. Ammonia
C. Neon
D. None of the above

A. Gases
B. Metals
C. Nonmetals
D. Metalloids

A. Atomic size normal
B. Atomic size increases
C. Atomic size decreases
D. Atomic size same