Tag: science & technology

The .MPG file extension is used for MPEG (Moving Picture Experts Group) video files. These are compressed digital video files commonly used for movies and animations, standardized by the MPEG group.

Argon (Ar) is the most abundant rare gas in Earth's atmosphere, constituting about 0.93% by volume. Helium and neon are present in trace amounts, while xenon is extremely rare.

Formic acid was historically produced by the destructive distillation of ant bodies. The name comes from 'formica', the Latin word for ant. While ants do secrete it for defense, the chemical name specifically honors its original method of isolation.

India has the world's largest monazite deposits, particularly along the coasts of Kerala, Tamil Nadu, and Odisha. Monazite is a primary source of thorium, a strategic nuclear fuel.

DNA (Deoxyribonucleic Acid) is the primary molecule that carries genetic information and controls inherited traits. While RNA and nucleotides are involved in genetic processes, DNA is the main hereditary material.

When 1 gram of fat is metabolized, it produces approximately 37-39 kJ of heat energy. This is higher than carbohydrates or proteins, which is why fats are energy-dense nutrients.

8 g of oxygen = 8/16 = 0.5 mol of O atoms. Since CO2 has 2 oxygen atoms per molecule, 0.5 mol O atoms corresponds to 0.25 mol CO2.

The chloride from salt (NaCl) is essential for producing hydrochloric acid in the stomach, which is necessary for digestion and killing harmful bacteria. While salt enhances taste, its physiological role is more critical.

Polythene (polyethylene) is formed by polymerization of ethylene (ethene) monomers. Vinyl chloride forms PVC, and ethyl alcohol is not a monomer for common plastics.

Metallic luster is caused by the presence of free electrons that absorb and re-emit light. The delocalized electrons in metals interact with incident light, giving metals their characteristic shine.