group process group decision group action

Group Displacement Law - Soddy and Fajan summarised the a and b - particle emission in the form of the law known as Group Displacement Law. "The emission of a - particle by an element results in the formation of a new element which lies two places to the left of the parent eleme..

When aryl halides are heated at 623 K and under pressure (300 atm), with aqueous solution of sodium hydroxide, the halogen atom is replaced by hydroxyl group forming phenol. Firstly sodium phenoxide is formed, which on acidification gives phenol...

Summary - Chlorine belongs to group VII A. Members of this group are called halogens which means 'salt producers'. Chlorine is a greenish yellow gas. Chlorine has seven electrons in its outer most shell and so has a valency of 1. Like other halogens chlorine is a strong oxidisin..

Summary - Hydrogen is the most abundant element in the universe. Hydrogen is also the lightest element in the universe. It has a vapour density of 1, which is 14.4 times lighter than air. Hydrogen is absent in the free state in the earth's atmosphere. But in the combined state it is found in water,..

Except for gold and platinum nitric acid attacks all metals, forming different products. The product formed depends upon the nature of the metal, concentration of the acid and temperature. Depending upon their reactivity, metals may be grouped as follows: Less active metals i.e., metals..

Synthetic detergents have the same type of molecular structure as soaps i.e. a tadpole like molecule having two parts at each end i.e., one large non-polar hydrocarbon group that is water repelling (hydrophobic) and one short ionic group usually containing the or grouph..

How does the neuroendocrine control work? The hormones are released in very small quantities, yet they can cause widespread dresponses in cells or tissues all over the body. These responses in cells or tissues all over the body. These responses can be quite specific and selective in different cell..

The cleaning action of soap occurs when oil and grease are absorbed into the hydrophobic centers of soap micelles and are washed away. fig 7.10 - Cleansing action of soap Sodium lauryl sulphate is a synthetic detergent present in laundry soaps, toothpastes and shampoos. The form..

Group 16 (VIA) Oxygen and Sulphur..

The common features show that an evolutionary process exists and there is a link between the different groups..