A ‘breath test’ used by traffic police to check drunken driving uses ____?
A. Turmeric on filter paper B. Silica gel coated with silver nitrate C. potassium permanganate-sulphuric acid D. Potassium dichromatic-sulphuric acid
Everyday Science MCQs
What is the chemical formula for Sodium carbonate _______ ?
A. Na3CO2 B. CNa2O3 C. Na2CO3 D. Na3CO3
A mixture of sand and naphthalene can be separated by ________ ?
A. Chromatography B. Fractional distillation C. Sublimation D. None of these mixture of sand and naphthalene can be separated by “Sublimation”.
The M.K.S. system was first introduced by _________ ?
A. Giorgi B. Archimedes C. Eienstein D. Newton The M.K.S. system was first introduced Giorgi. M stands for meters. K stands for kilograms. S stands for seconds. These three units work together with various equations. They are three basic units within the SI system. Many other units can be described using those three units. For … Read more
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. 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 … Read more
What is the molecular formula for Ammonia?
A. NH B. NH2 C. NH3 D. NH4
The scientific study of fingerprints is called _________ ?
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.