relations and functions introduction

Biomolecules are complex organic molecules. These molecules form the basic structural constituent of a living cell. The organic compounds such as amino acids, nucleotides and monosaccharides serve as building blocks of complex biomolecules. The important biomolecules are proteins, carbohydrates and..

The p-block contains several elements of great social and economic importance as well as chemical interest. Examples include the use of aluminium as a structural material, the importance of silicon and germanium as semiconductors, and the use of sulphur, phosphorus and nitrogen in fertilizers. The ..

They are named by adding the word diazonium to the name of parent aromatic compound to which they are related, followed by the name of anion. ..

This chapter contains oxygen compounds in which oxygen is bonded to a carbon atom through a double bond. The functional unit >C = O, present in these compounds is called carbonyl group. We limit our study now to compounds having an acyl group (R - C = O) is bonded to hydrogen, carbon,..

. Elements with similar properties occupy similar positions when their properties are plotted as a function of their atomic weights was Lother Meyer's arrangement. All the above attempts were very elementary and could not be successfully applied to all the elements, which at present are a..

At the molecular level all the different types of cells in living organisms are composed of certain chemical substances. The structure and function of the cell and its components are dependent on the molecular structure, arrangement and properties of these chemical constituents. The molec..

Alcohols, phenols, ethers, aldehydes, ketones and carboxylic acids are compounds with functional groups containing oxygen. An alcohol contains one or more hydroxyl (OH) groups(s) attached to aliphatic carbon atom(s). For e.g., ethyl alcohol formula CH 3 , CH 2 , OH is an alcohol. A phenol..

Determine whether the relation is a function. => Yes or No..

A relation becomes a function only if _______. => for every input, there are fixed number of outputs or for every input, there is exactly one output or for every input, there are two outputs or for two inputs, there is exactly one output..

from a set A to a set B is a subset of A x B. - A relation R on a set A is reflexive if a R a, " a A- A relation R on a set A is symmetric if a R b b R a. - A relation R on a set A transitive if a R b and b R c a R c. A relation R is said to be an equivalence..