hydrogen compounds class 11

HYDROGEN COMPOUNDS

name of the chapter: Hydrogen Compounds

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Hydrogen NCERT Introduction:

Hydrogen has the simplest atomic structure among all the elements around us in Nature. In atomic form, it consists of only one proton and one electron. However, in the elemental form, it exists as a diatomic (H2) molecule and is called dihydrogen. It forms more compounds than any other element. Do you know that the global concern related to energy can be overcome to a great extent by the use of hydrogen as a source of energy? In fact, hydrogen is of.

Hydrogen is a lighter-than-air, flammable, diatomic gas. It is colorless and only sparingly soluble in solvents. ... Platinum metal or heat can catalyze the reaction of hydrogen with oxygen to form water. In hydrogen fuel cells, the chemical oxidation of hydrogen to water produces electricity.

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Purification Characterisation of Organic Compounds class 11

Purification Characterisation of Organic Compounds name of the chapter: Purification Characterisation of Organic Compounds Content Provider: FIITJEE Lecturer from FIITJEE simple notes: Organic compounds extracted from a natural source or synthesized in the laboratory require purification. Various methods are used for purification and are based on the nature of the compound and the impurity present in it. The purity of a compound is ascertained by determining its melting point or boiling point or by chromatographic and spectroscopic techniques. Fraction distillation can be defined as a process where the separation of a mixture takes place. A mixture of various components such as chemical components can be easily vaporized by heating them to a temperature more than their boiling point and forming different fractions. embedded pdf:

Hydrocarbon class 10 & 9 carbon and its compunds

Hydrocarbons What is a hydrocarbon? * In organic chemistry, a hydrocarbon is a compound consisting primarily of carbon and hydrogen along with other elements added on as functional groups Few examples of Hydrocarbons are *Methane *Ethane *Ethanol *Propane *Butane Types of hydrocarbons: *The hydrocarbons can be classified as *Open chain or acyclic hydrocarbons *Cyclic hydrocarbons *Acyclic hydrocarbons have a linear structure and do not form rings *Cyclic hydrocarbons have a structure like a ring Acyclic Hydrocarbons: * Organic compounds in which all the carbon atoms are linked to one another to form an open chain are called Acyclic Hydrocarbons. *These can be saturated or unsaturated Saturated Hydrocarbons: *The Hydrocarbons where the carbon atoms are linked by only single bonds are called saturated Hydrocarbons. *They are also alkanes and parrafins Unsaturated Hydrocarbons * The carbon ...

acids bases and salts pptx

Acids Bases and Salts PPT name of the chapter: acids bases and salts Content Provider: Student ( Dharani ) Acid Bases and Salts introduction by NCERT : You already know that acids are sour in taste and change the colour of blue litmus to red, whereas, bases are bitter and change the colour of the red litmus to blue. Litmus is a natural indicator, turmeric is another such indicator. Have you noticed that a stain of curry on a white cloth becomes reddish-brown when soap, which is basic in nature, is scrubbed on it? It turns yellow again when the cloth is washed with plenty of water. You can also use synthetic indicators such as methyl orange and phenolphthalein to test for acids and bases. In this chapter, we will study the reactions of acids and bases, how acids and bases cancel out each other’s effects and are much more interesting things that we use and see in our day-to-day life. Do Y...

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