Category Archives for "Chemistry"

Chemistry is the science of study of matter in finest sense, its interactions and existence.

Limit Test for Arsenic with Apparatus and Reaction

Limit Test for Arsenic

Arsenic is a heavy metal that is very harmful. Besides, as an impurity, it also creates instability in pharmaceutical preparations. However, it is impossible to avoid arsenic impurity from being present in the finished products. But, its presence in meager part per million is acceptable So, it is essential to check the limits of arsenic […]

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Electrons in Carbon |Their Valency and Configuration.

Electrons in carbon

Carbon belong to the 2nd period of the periodic table. It is located in ‘P’ block. Thus the outermost electrons of the atom are present in the ‘P’ orbital. It can form bonds with itself which is termed as concatenation. Electrons in carbon Carbon is present in group 14 of the periodic table. Carbon has […]

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Alcohol Reactions in Organic Chemistry and Synthesis

alcohol reactions

The alcoholic functional group is the –OH or hydroxyl group attached to a carbon atom. Alcohol contains one or more hydroxyl groups directly attached to the carbon atom of an aliphatic chain. When the hydroxyl is attached to a carbon atom in an aromatic system, it is known as phenol. Alcohols are acidic in nature […]

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Characteristics of Magnesium, its Properties and Uses


Magnesium is an element of S-block. Its atomic number is 12, and the mass number is 24.305u. It has an atomic radius of 160pm. It belongs to the 2nd group in the periodic table and is located in the 3rd period. Due to this location in the periodic table, it is classified as an alkaline […]

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Potassium Properties, Reactions and Uses

Potassium Properties

Potassium has an atomic number 19 and is located in group 1 of the s-block. It is located in the fourth period. It is classified under alkali earth metals as it belongs to group one. Though potassium is very abundant in nature, it is usually never found in the free state due to its high […]

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Beryllium Metal Properties, Reactions and Uses

Beryllium has an atomic number 4 and is the first element of the 2nd group of the periodic table. It is classified as an alkaline earth metal. Beryllium is a comparatively rare element. It can be found in many gemstones. It has an atomic mass of 9.012 u and is represented by Be. Beryllium is […]

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Examples of a Pure Substance in Our Daily Life

Examples of a Pure Substance

A pure substance is one which is made up of a same type of molecule.And in real life we come across very few examples of pure substances. A substance can be said to be pure if it has a homogeneous appearance and an uniform color throughout its matter. These materials are very hard to find […]

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Atomic structure | Models and Experiments in Detail

atomic structure

At the initial point of the 19th century, a British chemist John Dalton proposed the atomic theory. This could successfully explain the law of conservation of mass and constant proportion.  However since he considered atoms to be indivisible, his theories couldn’t be used to explain many chemical phenomena. By the end of the 19th and […]

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