In semiconductors why we use only pentavalent or trivalent?, Penta valent ...

Penta valent element has one electron more than 4 electrons which could be used for conduction while the trivalent elements has 1 electron less , this can also be seen as a hole

Physical properties of amino acids, Physical properties of Amino acids ...

Physical properties of Amino acids (a) Amino acids are colourless, crystalline substances comprising sweet taste. They melt along with decomposition at higher temperature (much

The electronic structure of four elements, The electronic structure of four...

The electronic structure of four elements A, B, C, D are: (1) 1s 2                   (2) 1s 2 , 2s 2, 2p 2 ,              (3)  1s 2, 2s 2 , 2p 5 ,

Chemical kinetics, determination of oder of reaction by integral method

determination of oder of reaction by integral method

Periodic table and periodicity of properties, alkali metals belong to s-blo...

alkali metals belong to s-block in the periodic table.why?

Calculate the stoichiometric ratio, Consider 1:1 stoichiometric polymerisat...

Consider 1:1 stoichiometric polymerisation of 1, 4-diaminobutane with sebacoyl chloride. (a) Write down a balanced chemical equation for the polymerization (b) Name the polym

Anaerobic fermentation of grain , In the anaerobic fermentation of grain th...

In the anaerobic fermentation of grain the yeast Saccharomyces cerevisiae digests glucose from plants to create the products ethanol and propenoic acid by the following overall rea

Write the reaction involved in phenol to salicyclic acid, Write the reactio...

Write the reactions and the conditions involved in the conversion of: a. Propene to 1-Propanol b. Phenol to Salicyclic acid

Ionic bond,

Electrochemical cells and series, difference between electrochemical cells...

difference between electrochemical cells and electrochemical series