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Explain about Phosphprous and its allotrpes White phosphorus - crystalline solid P 4 Red phosphorus - polymeric solid Scarlet phosphorus Violet phosphorus
The de-Broglie wavelength associated with a particle of mass 10 -6 kg moving with a velocity of 10 ms -1 , is: (1) 6.63 x 10 -22 m (2) 6.63 x 10 -29 m
Physical properties of Acyl Halides 1. As much lower acyl chloride are mobile, colourless liquid while the higher members are coloured solids. 2. Acyl chloride has very pun
Burgers vector in screw dislocation The Burgers vector, often signified by b, is a vector that shows the magnitude and direction of the lattice distortion of dislocation in a
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Orbital angular momentum for a d-electron is: (1) 6h/ 2Π (2) √6/ 2 Π (3) 12 h/ 2Π (4) √12h/ 2Π Ans: √6/ 2 Π
The principal quantum number represents : (1) Shape of an orbital (2) Distance of electron from nucleus (3) Number of electrons in an orbit (4) Number of orbitals in an
If the velocity of hydrogen molecule is 5x 10 4 cm sec -1 then its de-Broglie wavelength is: (1) 2 Å (2) 4 Å (3) 8 Å (4)100 Å Ans: 4 Å
Chemical properties of Cycloalkanes Cycloalkanes behave both such as alkenes and alkanes in their chemical properties. All cycloalkanes go through substitution reaction with ha
DEGREE OF HARDNESS: The degree of hardness of water is conveniently expressed in terms of equivalent amount of CaCO 3 . Although hardness of water is never present in th
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