A. n-pentane
B. iso-heptane
C. iso-octane
D. n-heptane
A. Al2O3
B. Fe2O3
C. Al2O3 and SiO2
D. Fe2O3 and SiO2
A. earth layer
B. mountains
C. sedimentary rocks
D. rocks
A. animals
B. fossils
C. wood
D. all of the above
A. very slow
B. very fast
C. slow
D. no regular character present
A. carboxylic acids
B. ketones
C. aldehydes
D. polymers
A. catenation
B. hybridization
C. polymerization
D. solvation
A. tartaric acid
B. ethyl alcohol
C. methanol
D. urea
A. Wohler
B. Kolbe
C. Berzilius
D. Berthelot
A. Boiling point
B. Melting point
C. Percentage composition
D. Structural formula