Sciences
Which is the lightest particle of the matter?
Electron is the lightest particle of the matter. The electron is a subatomic particle carrying a negative electric charge. It has no known components or substructure. Therefore, the electron is generally believed to be an elementary particle. An electron has a mass that is approximately 1/1836 that of... readmore
The human body is immune to which of the following diseases?
The human body is immune to Smallpox disease. Smallpox is an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor. The disease is also known by the Latin names Variola or Variola vera, which is a derivative of the Latin varius, meaning “spotted”,... readmore
Which Fuels Cause Minimum Environmental Pollution?
Hydrogen causes minimum environmental pollution. Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of 1.00794 u, hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe’s chemical... readmore
What of the following is used to make covers of capsules?
Starch is used to make covers of capsules. Starch is a carbohydrate consisting of a large number of glucose units joined together by glycosidic bonds. This polysaccharide is produced by all green plants as an energy store. It is the most important carbohydrate in the human diet and is contained in such... readmore
Aspirin: Common Name of Methyl Salicylate
The common name of methyl salicylate is aspirin. Aspirin also known as acetyl salicylic acid is a salicylate drug, often used as an analgesic to relieve minor aches and pains, as an antipyretic to reduce fever and as an anti-inflammatory medication. Read More →
Which Gases Are Used For Refrigeration
Ammonia gas is used for refrigeration. Ammonia is a compound of nitrogen and hydrogen with the formula NH3. It is a colorless gas with a characteristic pungent odor. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Read More →
At which point water has maximum density?
Water has maximum density at 4 degree centigrade. Water (H2O) is the most abundant compound on Earth’s surface, covering about 70%. In nature, it exists in liquid, solid, and gaseous states. It is in dynamic equilibrium between the liquid and gas states at standard temperature and pressure. At... readmore
At Which Point Water Does Not Boil?
Water does not boil at 273 Kelvin. The kelvin is a unit of measurement for temperature. It is one of the seven base units in the International System of Units (SI) and is assigned the unit symbol K. The Kelvin scale is an absolute, thermodynamic temperature scale using as its null point absolute zero. Read More →
Which Color Has Shortest Wavelength in Spectrum
In the visible spectrum, the color having the shortest wavelength is red. A spectrum is a condition that is not limited to a specific set of values but can vary infinitely within a continuum. The word saw its first scientific use within the field of optics to describe the rainbow of colors in visible... readmore
Which Device is Used to Convert Alternate Current into Direct Current?
Transformer is used to convert alternating current into direct current. A transformer is a static device that transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer’s coils. A varying current in the first or primary winding creates a varying... readmore