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Energy of the electron in Hydrogen atom is given by: (1) E n = 131.38/ n 2 x kj mol -1 (2) E n = 131.33/n xkj mol -1 (3) E n = 1313.3/ n 2 x kj mol
what is agar-agar
Electrolytes are compound containing: (1) Electrovalent bond (2) Covalent bond (3) Coordinate bond (4) Hydrogen bond Ans: Electrovalent bond
If uncertainty in the position of an electron is zero, the uncertainty in its momentum would be: (1) Zero (2) (3) > h/ 2γ (4) Infinite
If n= 3 , then the value of which is incorrect: (1) 0 (2) 1 (3) 2 (4)3 Ans: 3
what evidence is there that all cells have a common ancestor?
its principle
Write the reactions and the conditions involved in the conversion of: a. Propene to 1-Propanol b. Phenol to Salicyclic acid
500-600 words
Types of chromatography- Purification of organic compounds Depending on the nature of the stationary and the mobile phases, the different types of chromatographic methods gener
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