Petroleum is a fossil fuel, which is obtained from the remains of dead plants and animals. Petroleum is a mixture of various useful substances.... View Article
A substance, which is made up of only one kind of particles and is free from any kind of mixture with constant structure is termed a pure... View Article
Magnetic Moment is defined as the magnetic strength and orientation of a magnet or other object that produces a magnetic field. The magnetic... View Article
NO-3 and NH+4 ? TheHybridization Of Atomic Orbitals Of Nitrogen In NO+2 The total electrons in the valence shell are 16. 16 / 8= 2. Quotient = 2... View Article
NO3- CO -23 ClO-3 SO3 Isoelectronic refers to two or more compounds having the same numbers of electrons. Isostructural refers to the chemical... View Article
Mg + H2SO4→MgSO4 + H2 30g of magnesium sulphate is formed when 6g of magnesium reacts with an excess H2SO4. Number of Moles = (Mass of the... View Article
There are three zones in a candle flame. All these three zones have different colour and temperatures. Outer zone This is the first zone This... View Article
The standard molar enthalpy of the formation of carbon (CO2) is equal to the standard molar enthalpy of combustion of carbon (graphite). The... View Article
The various postulates of Daltons' atomic theory of matter are: 1. All matter is made up of tiny and invisible particles called an atom. 2. Atoms... View Article
Answer: (C) NH3. Bond angle can be defined as the angle formed between two covalent bonds that originate from the same atom. The geometric angle... View Article
The adsorption isotherm is a curve that defines the relation between the amount of gas adsorbed by the adsorbent with pressure at a constant... View Article
The two isotopes of chlorine, Cl-35 and CI-37 would be placed in the same slot because of their same atomic number and similar chemical... View Article
In Mendeleev's periodic table, noble gases like helium, neon and argon were not mentioned because of the following reasons: Noble gases are... View Article
Mendeleev left some gaps in his periodic table so that the elements with similar properties fell in the same vertical column or groups of his... View Article
