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Chemical Properties of Aromatic Nitro Compounds Resonance in nitrobenzene pass on a partial double bond character to the bond among carbon of benzene nucleus and nitrogen of th
Cyclic hydrocarbons - IUPAC system of nomenclature These compounds consist of carbon chain skeletons that are closed to form rings. The saturated hydrocarbons along with ring o
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Q. What do you mean by Homologous Series? Ans. How can we adequately learn about carbon compounds when there are so many of them? The answer lies in grouping similar c
Preparation of 2,2,6-trimethyl-5-phenylheptan-3-one: Safety 2-Bromopropane : Irritating to eyes, respiratory system and skin. If eye contact, wash with large volumes of
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Q. Give the general formula of Organic Acids? Ans. Organic acids have the general formula RCOOH. The R- is an alkyl group or hydrogen. The functional group is -COOH and
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mechanism of hydroboration of 2-methylpropene
chemical bonding
Colloids are classified as two types which are the lyophilic / reversible and lyophobic / irreversible. If water is the dispersion medium, then the term used are hydrophilic and hydrophobic.Lyophilic colloids: A colloidal system which may be constructed readily by simple warming or shaking the substance in a suitable solvent is called as lyophilic colloid. Substances that form lyophilic colloids involves gelatin, starch, and rubber, proteins, gum. Lyophilic colloids are also named as reversible colloids as on evaporating the dispersion medium such as water, the substance or the residue may be again reconverted into colloidal state simply by addition of the liquid i.e. water. These solutions are reasonably stable and usually cannot be easily precipitated.Lyophobic colloids: colloids constructed with difficulty are termed as lyophobic colloids. These colloids are constructed by substances such as As2S3 , Fe(OH)3, gold and other metals that are sparingly soluble and thus their molecules do not pass readily into colloidal state. Lyophobic colloids are called as irreversible colloids since the residue cannot readily be reconverted into sol by ordinary means. These solutions are quite readily precipitated and hence they are not stable.
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