Blog Tag Chemistry

Alloy

Definition: Alloys are the homogeneous mixture of two or more metals( non metals). Why are alloys made : to improve the  properties of  substance. Common alloys :1 Stainless steel                             Composition: Iron +Chromium + Carbon + Nickel  &nb . . .

METHODS OF SEPARATION

  METHODS OF SEPARATION The process by which mixtures are separated to get pure substances is called separation A. Separation of solid-solid mixture 1 Hand picking- This method is used when quantity of mixture is small and substance which has to be separated I in the small portion. Ex. Small stones from grains. 2. Winnowing- This met . . .

Rules for IUPAC Naming

Alkanes - saturated hydrocarbons The names of the straight chain saturated hydrocarbons for up to a 12 carbon chain are shown below. The names of the substituents formed by the removal of one hydrogen from the end of the chain is obtained by changing the suffix -ane to -yl. Number of Carbons                 . . .

Cleaning Action of Soap

How does soaps clean dirt from cloth Soaps are molecules in which the two ends have differing properties, one is hydrophilic, that is, it dissolves in water, while the other end is hydrophobic, that is, it dissolves in hydrocarbons. When soap is at the surface of water, the hydrophobic ‘tail’ of soap will not be soluble in water and the s . . .

Detection of Cations

Tests to detect cations present in a metallic salts with sodium & ammonium hydroxide . . .

Petroleum

Petroleum Petroleum is a fossil fuel. It is dark coloured viscous and foul smelling liquid commonly called crude oil.it is always found trapped between two impervious rocks. It is derived from Latin word petra means rocks and oleum means oil. Thus, petroleum laterally means rock oil. Petroleum is a complex mixture of solid, liquid and gaseous hydr . . .

Reactivity of Metals

Different metals show different reactivity towards different chemical compounds. Following chart shows the chemical properties of metals.  . . .

Some Important Chemical Compounds

There are so many chemical compounds which are widely used in chemistry and play an important role in our domestic life, Industries and in analytical chemiatry. Following is the list of such compounds with their chemical formula, chemical name & common name. . . .

Different kinds of materials

Different kinds of materials: 1. METALS: PROPERTIES: Metals are shiny (lustrous) in appearance. Metals are flexible, so they can be bent. Metals are good conductors of heat and electricity. Metals are hard and strong. Metals can be heated to high temperature. Metals are malleable. So they can be beaten into thin sheets. Metals ar . . .

Valency Chart

Valency It is the combining capacity of elements                              or The number of electrons donated, accepted or shared by an atom to complete 8 electrons in its outer most shell (octet rule) is called its valency.  Ions or Radicals with positive val . . .

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