A. HNO2
B. HNO3
C. HN2O2
D. H2NO4
A. HNO2
B. HNO3
C. HN2O2
D. H2NO4
A. Dermatology
B. Dormatology
C. Deontology
D. Dermatoglyphics
A. Dactylography
B. Dactylology
C. Dactyliology
D. Dialectology
Dactylography is also called Dactyloscopy, the examination of finger prints. NOTE: Dermatoglyphics (from ancient Greek derma = “skin”, glyph = “carving”) is the scientificstudy of fingerprints.
A. It does not carry any charge
B. It does not move
C. It is a fundamental particle
D. It is present in nucleus
A. J.J.Thomson
B. Chadwick
C. Rutherford
D. Robert Millikan
A. 17.031 g/mol
B. 18.031 g/mol
C. 19.031 g/mol
D. 27.033 g/mol
A. NH
B. NH2
C. NH3
D. NH4
A. Hydrogen
B. Neon
C. Carbondioxide
D. Argon
The most common gas people breathe from clean air is nitrogen. Air is a mixture of gases, and the air on Earth contains about 78 percent nitrogen and about 21 percent oxygen. Argon, carbon dioxide neon, helium, methane, krypton, hydrogen and xenon are in much smaller amounts.
A. C4H10O6
B. C5H11O6
C. C6H12O6
D. S6H12O6
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic acids