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The bond energy of an O- H bond is 109 kcal mol 1. When a mole of water is formed from H and O atoms, then
218 kcal is released.Two O-H bonds are there is H2O so 2*109 kcaland energy is released in bond making
For n= 3 energy level, the number of possible orbitals (all kinds) are: (1) 1 (2) 3 (3) 4 (4) 9 Ans: 9
Q. What are Trioxides? The selenium and tellurium trioxides are not stable, SO 2 , is the only important trioxide in the group. Its preparation has been described above. Sul
State the Functions of oxide layer (i) To mask against diffusion or ion-implant, (ii) To passivate surface electrically and chemically. (iii) To isolate one device from a
eperiment on conductometric titration on acids and bases
role of chemistry in our daily life
how was the magnitude of electric charge concluded?
Calculation of Number of Atoms per Unit Cell of HCP (n): One half of the each of the 2 base centre atoms (2x1/2), one six of the every of the 12 corner atoms (12x1/6) and all
what is reverse hyperconjugation? explain with an suitable example....
The maximum number of electrons that can be accommodated in f sub shell is : (1) 2 (2) 8 (3) 32 (4) 14 Ans: 14
chemical reacation of sucrose
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