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An electron has kinetic energy 2.8 x 10 -23J . de-Broglie wavelength will be nearly:
(me: 9.1 x 10 -31 kg)
(1) 9.28x 10-4m
(2) 9.28 x10-7 m
(3) 9.28 x 10 -8m
(4) 9.28x 10 -10 m
Ans:(c) 9.28 x 10 -8m
a) During coagulation, the colloidal particles stay un-aggregated because: b) The aim during water softening is to precipitate calcium and magnesium as calcium carbonate and mag
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The electronic configuration of a metal M is 1s 2 , 2s 2 , 2p 6 , 3s 1 , The formula of its oxides will be: (1) MO (2) M
Q. Explain Ionization Energy? Ans. When an electron is removed from an atom, the atom has been ionized. Therefore, the energy required to remove an electron from an atom i
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
No. of valence orbitals- No of Hybrid orbitals.Apply the formula for no. of hybrid orbitals.If it exceeds 4 then the answer is 0.
#question how many calories are required to heat 1.0g water from 15 to 65c..
HOW WE NAMING THE BOND LINE NOTATION
Types of interferences: Within an atomic spectrometric method, interferences are produced through the non- analyte elements of the sample. The probable interferences that coul
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