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Q1: The complexes of Fe +2 with 1, 10- phenanthroline has a molar absorptivity of about 11,000 L/mol cm in water at 510 nm. A 20 ml water sample thought to contain Fe +2 is mix
Major modes of food deterioration During storage and distribution, foods are exposed to a wide range of environmental conditions. Environmental factors such as temperature, hum
For the formation of covalent bond, the difference in the value of electron egativities should be: (1) Equal to or less than 1.7 (2) More than 1.7 (3) 1.7 or mor
Q. What do you know about Radioactive Dating? Ans. Half-life measurements of radioactive elements in rocks and fossils can be used to determine the age of the specimen. On
Do you do power point assignments and if you do, what is the turn around time?
The total number of valence electrons in 4.2 gm N-3 of ion is ( NA is the Avogadro''s number): (1) 1.6NA
List three factor that affect conductivity
the given solution contains 2.5g of laundry soap dissolved per 250 cubic cm.determine the amount of free alkali in 350 cubic cm.
Why +ve P.F. gives nuclear instability where as -ve PF gives nuclear stability ?explain .
An ionic compound is generally a : (1) Good electrolyte (2)Weak electrolyte (3) Non-electrolyte (4) Neutral Ans: Good electrolyte
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