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Bond formed in crystal by anion and cation is:
(1) Ionic
(2) Metallic
(3) Covalent
(4) Dipole
Ans: Ionic
what are the standards of purity
Q. Explain Ellingham Diagrams? Ellingham studied the variation of standard free energy change for the formation of a number of compounds, e.g., oxides, sulphides and chlorides,
wive the most stable structure of hexene
what is frenkel defect ?
According to heisenberg uncertainty principle: (1) E=mc 2 (2) Δ x × Δp ≥ h/ 4 Π (3)γ = h/ p (4) Δ x × Δ = h / 6 Π Norma
If value of azimuthal quantum number l is 2, then total possible values of magnetic quantum number will be: (1) 7 (2) 5 (3) 3 (4) 2 Ans: 3
lithium and beryllium markedly differ from other members of their respstive groups
what is acid
in which state carbon exist
a) Write a balanced equation of the formation of dimethyl carbonate by the reaction of methanol with carbon dioxide. How can dimethyl carbonate form if phosgene is the reactant?
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