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what are the topics which are covered under the assignment of de broglie hypothesis?
What is the advantage of using a flame photometer instrument designed to operate with an internal standard ?
the diagnal relationship in periodic table
Explain What is a base line? Base line is nothing but the detectors response to the mobile phase.(gc,hplc)
The outer electronic structure 3s 2 3p 5 is possessed by: (1) Cl (2) O (3) Ar (4) Br ans: Cl
Benzene hexa chloride reaction
Radius of the first Bohr's orbit of hydrogen atom is: (1)1.06 Å (2) 0.222 Å (3) 0.28 Å (4)0.53A Ans: 0.53 Å
For an electron if the uncertainty in velocity is Δ v , the uncertainty in its position( Δ x ) is given by: (1) hm/ 4 Π Δ b (2) 4 Π / hm Π v
Method of preparation of Benzophenone
The energy of second Bohr orbit of the hydrogen atom is -328 kJ mol-1, hence the energy of fourth Bohr orbit would be: (1) - 41 kJ mol -1 (2) -1312 kJ mol -1 (3) -164
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