Use the +/- convention to show the direction ofexpected polarity for each of the

Question

Use the +/- convention to show the direction ofexpected polarity for each of the bonds indicated. (a) H3C-Cl (b) H3C-NH2 (c) H2N-H (d) H3C-SH (e) H3C-MgBr (f) H3C-F
I am stuck on part (d) specifically. According to mytextbook, both C and S have an electronegativity of 2.5. Ifthis is true... then + and - shouldn't beused at all. Am I going about this wrong? (a) H3C-Cl (b) H3C-NH2 (c) H2N-H (d) H3C-SH (e) H3C-MgBr (f) H3C-F
I am stuck on part (d) specifically. According to mytextbook, both C and S have an electronegativity of 2.5. Ifthis is true... then + and - shouldn't beused at all. Am I going about this wrong?

Explanation / Answer

(a) H3C(+) -Cl(-) (b) H3C(+) -NH2(-) (c) H2N(-) -H(+) (d) H3C- SH (there is no polarity in a C-S bond cause the same EN of C andS). (e) H3C(-) -MgBr (+) (f) H3C(+) -F(-)

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