Nuclei located near electronegative atoms tend to be deshielded relative to 13c nuclei which are not. the correct answer is option(b).
When an atom of a certain chemical element forms a chemical bond, it has a propensity to draw shared electrons, which is denoted by the symbol, which stands for electronegativity. The atomic number of an atom and the separation of its valence electrons from the charged nucleus both have an impact on how electronegative that atom is.
When near proton nuclei, electronegative atoms frequently draw the chemical bonding toward themselves. Near the nucleus of a proton, there is a lower electron density. This phenomenon is often referred to as the de-shield effect.
Learn more about electronegativity here: https://brainly.com/question/17762711
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