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Molisch's Test - Test on Glucose
This is a common test for carbohydrates. Three or Two drops of alcoholic solvent of α-naphthol are involved to 2mL of glucose solution. 1 mL of concentrated H2SO4 is mixed carefully all along the sides of the test tube. The making of a violet ring, at the junction of two liquids illustartes the existence of a carbohydrate.
Q. Show General Characteristics of group16? The valence shell electronic configuration of Group 16 elements is ns 2 , ns 4 . These elements tend to gain inert gas configuration
When 6.85 grams of the Sr(OH)2.xH2O hydrate are dried in an oven, 3.13 grams of anhydrous Sr(OH)2 are formed.whats the value of x..please answer asap
Application of mesomeric effect
define homolytic and heterolytic
find the equivalent weight of KMnO4
alkali metals belong to s-block in the periodic table ,why?
Which one of the following configuration represents a noble gas: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , (2)1s 2, 2s 2, 2p 6 , 3s 1 (3) 1s 2 , 2s 2 , 2p 6 ,
4.4g of a gas at stp occupies a volume 2.27l. The gas is
Cast iron is iron or a ferrous alloy which has been heated until it liquefies, and is then poured into a mould to solidify. It is usually made from pig iron. The alloy constituents
examples and uses of separation technique
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