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find H^+ concentration if Ph=4.90
The electronic configuration of four elements L,Q, P, and R are given in brackets: L ( 1s 2 , 2s 2 , 2p 4 ) Q (1s 2 , 2s 2 , 2p 6 , 3s 2 ,3p 5 ) P ( 1s 2 , 2s 2 2p
Is it the key or the lock of the lock and key model? Ans) The activation center is a region of the enzyme formed by its spatial conformation to which the substrate binds. In the
The ionisation potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n= 2 . (1) -3.4 eV (2)-6.8 eV (3) -1.7 eV
Uses of Unsaturated halides (Halo-alkene) The major use of vinyl chloride is in the manufacture of polyvinyl chloride that is abbreviated as PVC plastic that is employed these
reactivity of f-block elements
Which type of bond is formed between similar atoms: (1) Ionic (2) Covalent (3) Coordinate (4) Metallic Ans: Covalent
Why phenol can also be prepared from chlorobenzene(Dow''s process)
Explain about Debye huckel onsager equation of conductivity and its validity?
The energy of the electron in the first orbit of He + is -871.6x 10 -20 J . The energy of the electron in the first orbit of hydrogen would be : (1) -871.6 x10 -20 J
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