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Q. Describe properties and uses of different silicate glasses and also discuss the importance of annealing in the manufacture of glass.
Q. Tests for sensory evaluation? Tests for sensory evaluation are of three types: • Difference testing - This is the sensory testing designed to determine whether detectabl
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Addition reactions - Organic Chemistry Addition reactions are given by those compounds that have at least one p bond, i.e.,
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Solution) There is a formula for this i.e [ (n 2 - n 1
Q. Reactions with metals? Ans. Halogens commonly undergo reactions with metals. Halogens react with the alkali metal family, Group IA in the periodic table. For example,
Name the common element present in the anode mud in electro refinig of copper. Ans) ANTOMONY ,STRONSIUM,SELENIUM,TELLURIUM,SILVER,GOLD AND PLATINUM . THESE ELELMENTS ,BEING LESS R
WHY DENSITY OF POTASIUM IS LOW THAN SODIUM.
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What are the theoretical physical properties of esters?
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