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A mixture of sand and naphthalene can be separated by ________ ?
A. Chromatography
B. Fractional distillation
C. Sublimation
D. None of these
The M.K.S. system was first introduced by _________ ?
A. Giorgi
B. Archimedes
C. Einstein
D. Newton
What is the chemical formula for Sulfuric acid?
A. C2H6O
B. CaSO4
C. C2H4O2
D. H2SO4
Which of the following is a diverse group of hydrophobic molecules?
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic acids
What is the Molecular Formula for Glucose _______ ?
A. C4H10O6
B. C5H11O6
C. C6H12O6
D. S6H12O6
What is the third most common gas found in the air we breathe ________ ?
A. Hydrogen
B. Neon
C. Carbon Dioxide
D. Argon
What is the molecular formula for Ammonia?
A. NH
B. NH2
C. NH3
D. NH4
What is the molecular weight of Ammonia (NH3) ________ ?
A. 17.031 g/mol
B. 18.031 g/mol
C. 19.031 g/mol
D. 27.033 g/mol
The absolute value of charge on electrons was determined by ________ ?
A. J.J.Thomson
B. Chadwick
C. Rutherford
D. Robert Millikan
The discovery of neutrons became very late because _______ ?
A. It does not carry any charge
B. It does not move
C. It is a fundamental particle
D. It is present in nucleus
The scientific study of fingerprints is called _________ ?
A. Dactylography
B. Dactylology
C. Dactyliology
D. Dialectology
The medical branch of science that deals with the study of skin, its functions, diseases, & treatment is ________ ?
A. Dermatology
B. Dormatology
C. Deontology
D. Dermatoglyphics
What is the molecular formula for Ammonia?,The M.K.S. system was first introduced by,What is the Molecular Formula for Glucose,What is the chemical formula for Sulfuric acid?