Answer: The formula of trapezoid volume is given as Where, b1 and b2 are the base of the trapezoid h is the height of the trapezoid H is... View Article
Answer: The partial charges present on an atom are always less than the unit charge (1.6 x 10-19 C) because of electron sharing effect. When... View Article
Answer: 4 The significant figures of numbers are digits to convey the meaning that contributes to its measurement resolution. Non-zero digits... View Article
Answer: The least count of an instrument is the smallest measurement that can be taken accurately with it. Pierre Vernier of France invented... View Article
Answer: Sunflowers belong to the genus Helianthus, which consists of many species. The common sunflower, the crop grown for its edible oil, is... View Article
Answer: Galvanometer is used to detect presence of small current in a circuit. A galvanometer is an electromechanical system that detects... View Article
Answer: A subatomic particle is a particle with a size smaller than that of an atom. Protons, electrons, and neutrons are the three subatomic... View Article
Magnetic lines of force are the lines that depict the magnetic force that exists in the surrounding of the magnet. The properties of magnetic... View Article
Answer: Acids turn methyl orange pink/red. Methyl orange is a natural pH indicator used in titration or used to test whether a substance/a... View Article
Answer: A reaction in which two or more reactants combine to form a single product is known as a combination reaction. Combination reaction is... View Article
Answer: The Baeyer's process is used for leaching of Aluminium metal. In Bayer’s process, aluminium ore is treated with concentrated sodium... View Article
Answer: During formation of Ca(NO3)2, Calcium donates two electrons and gets converted to Ca2+, while two ammonium ions gain one electron each... View Article
Answer:Â The simplest formula or the empirical formula provides the lowest whole number ratio of atoms existent in a compound. The relative... View Article
Answer:Â Na+ has a higher electron affinity than Cl. The energy released when an electron is added to a neutral gaseous atom is known as... View Article
Answer: On heating gypsum it loses one and a half molecules of water and forms calcium sulphate hemihydrate also known as plaster of Paris.... View Article
The Pacific Ocean is the largest ocean. It is the largest and deepest of Earth's oceanic divisions. The Arctic region covers eight countries:... View Article
Answer: An alloy of lead and tin is used in the fused wire as it has a low melting point and a very high resistance. An electrical fuse is a... View Article
Answer: Total lung capacity is the maximum air which can at any time be held in the two lungs. It is 6 litres. By the age of 25, the lungs in... View Article
Answer: Evaporation increases with the increase in wind speed. Vapour particles move away when the speed of wind increases. This leads to an... View Article
Answer: Below 369 K alpha sulphur is stable and above this it transforms into beta sulphur. At 369K both the forms are stable. Sulphur exists... View Article