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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. Determine mass of an electron? Ans. Three years later after J.J Thomson discovered the electron, the American scientist Robert Millikan used an oil drop experiment to accu
All electrons on the 4p sub-shell must be characterized by the quantum number(s): (1) n=4, m= 0, s= ± 1/2 (2) l=1 (3) l=0, s= ± 1/2
A 64-g sample of germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0 g remain. What is the half-life of this material? 4. With a half-life of 28.8
According to Bohr's principle, the relation between principle quantum number and radius of orbit is: (1) r ∞ n (2) r ∞ n 2 (3) ∞1/n (4) r∞ 1/ n 2 Ans: r
factors influencing chemical shift
Mention the major reason for the anomalous behaviour of lithium in Group of the periodic table. Why is the third ionization energy of manganese (At. No. =25) unexpectedly high?
IUPAC System of Naming Organic Compounds In the IUPAC (International Union of Pure and Applied Chemistry) system, the name of an organic compound contain three parts that are:
Is liquid ammonia is solvent?
I HAVE TO PREPARE A ASSIGNMENT ON LIQUID CRYSTAL. AND I WANT TO MAKE IT DIFFERENT FROM OTHER, ACTUALLY I GOT THE MATTER FROM OUR BOOK BUT OUR TEACHER SAID THAT YOU DON''T HAVE TO C
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