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Optical glass: They contain phosphorous as replacement for most of all the silica and lead silicate, containing a little CaO2, the latter is capable of absorbing ultraviolet light which is injuries to eyes. Moreover, they are given through homogeneity. This is achieved by a very careful manufacturing process and by careful heating of molten mass of prolonged time. In, general, optical glasses have low melting points and are relatively soft. Their chemical resistance and durability are appreciably lower than those of ordinary glass. They are used for making lenses.
how many mole ratios can be obtained from the following equation? Na2S+Cd(NO3)2-2NaNo3+CdS
a) Calculate the energy required to heat 1kg of CO 2 from 400 o C to 600 o C at a constant pressure of 1atm using:- i) The mean heat capacity data given below ii) The heat c
Q. Early Theories of Matter? In ancient Greece philosophers discussed the nature of matter. The philosopher Democritus held that matter was composed of elementary particles cal
How to calculate angle strain in. cyclobutane?
Uses of Catechol Catechol finds use as photographic developer and in the manufacture of alizarin and adrenaline hormone and like an antioxidant (inhibitor in auto oxidation) fo
Why alcoholic acidity express in terms of sulphuric acid
eperiment on conductometric titration on acids and bases
Number of unpaired electrons in Mn 4+ is: (1) 3 (2) 5 (3) 6 (4) 4 Ans: 3
what is arrhenius''s theory
Atomic absorption spectrophotometry: Atomic absorption spectrophotometry (AAS) concerns the absorption of radiation by the atomised analyte element in the ground state. The at
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