by direct combination conditions

The rays of a given color are strongly returned by the droplet in a direction that corresponds to a maximum deviation in its path. For light of red color this maximum deviation is 137.8 o so that the angle is 180 o -137.8 o = 42.2 o . For violet this angle is 40.6 o and the other colors l..

Molecular orbitals are formed by the combination of atomic orbitals. But all types of orbitals cannot combine with each other. The following are the main conditions for effective combination of atomic orbitals: 1. The combining atomic orbitals shoul..

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Some acids can be prepared by the direct combination of a non-metal with hydrogen. For e.g., In the above reactions, the obtained gases like hydrogen chloride, hydrogen iodide and hydrogen sulphide are also called the acid anhydrides. They exhibit acidic properties, only ..

The criterion for a chemical change is the production of one or more new substances. Therefore, certain conditions should be met in order to bring about a chemical change. The necessary conditions are: A minimum amount of energy needed to initiate a reaction (activation energ..

Nitrogen does not easily combine with other elements under ordinary conditions. A molecule of nitrogen is diatomic. These two atoms have combined by mutually sharing three pairs of electrons (Fig.12.7). ..

There are three p-orbitals namely 2p x 2p y and 2p z , which are directed in space along the x, y and z, coordinate axes respectively. By convention, z-axis is assumed to be the internuclear axis. The x and y-axes would then be perpendicular to the internuclear axis. The combinati..

Identify the incorrect statement. I. A composition of three reflections in lines that intersect in more than one point is called glide reflection. II. A glide reflection is a symmetry operation that combines reflection and translation. III. A glide reflection is a combination of..