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What is Standard deviation? Standard deviation tells about the widely spread out of the measured analytical data points. Highly precised measurements are less standard deviation.
Q. Definition of Avogadros Hypothesis? Ans. Equal volumes of different gases at the same temperature and pressure contain the same number of molecules. At a given temperatu
Q. Explain the types of Isomers? Ans. Three types of isomers are chain isomers, position isomers, and functional group isomers: Chain isomers are isomers which differ in
What are dextrorotary compounds and Levi rotary compounds? Ans) Compounds that rotate the plane polarized light to the right are known as Dextro rotatory compounds and that rota
Explain stereochemistry a) The stereochemistry is E. The Br has higher priority on one carbon stereocenter, but it has lower priority on the other. b) The stereochemistry is
Write chemical tests to distinguish among: a) Phenol and Benzoic acid b) Propanal and propanone c) Formic acid and Acetic acid
define homolytic and heterolytic
what are the 4 unique properties of colloiods
Physical properties of Adipic Acid (a) Adipic Acid is a white crystalline solid. Its melting point is 150°C. (b) Adipic Acid is fairly soluble in alcohol and ether but less
Total number of unpaired electrons in an atom of atomic number 29 is: (1) 1 (2) 3 (3) 4 (4) 2 Ans: 1
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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