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What is vsepr theory how does it explain bond angles observed in Ch4 NH3 an H2o |
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Answer» In Valence Shell Electron Pair Repulsion (VSEPR) theory, pairs of electrons that surround the central atom of a molecule or ION are arranged as far apart as possible to minimise electron-electron repulsion. Decide which is the central atom in a molecule. ..Explanation:In CH4, the central atom is C, which is in SP3 hybridization state. The four H-atoms are situated at the four corners of the tetrahedron. The BOND angle between H—C—H is 109.5°, which is called the tetrahedral angle. But in the case of NH3 and H2O MOLECULES, their central atoms N and O have a lone pair of electrons. |
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