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Show that wavefunction ψ1(x) = (2/L)1/2sin(πx/L) of a particle in a box is an eigenfunction of the operator d2 /dx2 and also calculate the corresponding eigenvalue.
The radius of electron in the first excited state of hydrogen atom is: (1) a 0 (2) 4a 0 (3) 2a 0 (4) 8a o
Carbon and its allotropes Diamond - an extremely hard, transparent crystal, with the carbon atoms arranged in a tetrahedral lattice. A poor electrical conductor. An excelle
Energy of atomic orbitals in a particular shell is in the order: (1) s (2) s> p > d > f (3) p (4) f > d > s >p Ans: s
Criteria of purity of organic compounds The purity of an organic compound can be determined by ascertaining its some physical constants such as m.p., b.p., defined gravity, re
Elimination reactions - Organic Reaction Elimination reactions are generally the opposite of addition reactions and include the removal of the two groups (usually, one being a
Penta valent element has one electron more than 4 electrons which could be used for conduction while the trivalent elements has 1 electron less , this can also be seen as a hole
Q. Show the Occurrence of the f-block element? Apart from promethium which is unstable and is found in traces in uranium ores, all the lanthanides usually occur together. Altho
Q. Show the Properties of diborane? Diborane is a colourless gas (b. p., 183K). It is rapidly decomposed by water with the formation of H 3 B0 3 and H 2 : B 2 H, + 6H 2 0 -
Which one of the following is considered as the main postulate of Bohr's model of atom: (1) Protons are present in the nucleus (2) Electrons are revolving around the nucleu
estimate concentration of hcl
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