Total number of deactivating groups among the following

1 View | Posted a month ago

Asked by Shiksha User

1 Answer

Answered by

alok kumar singh | Contributor-Level 10

a month ago

–C º N $? \underset{\begin{array}{l} | ? | \\ O \end{array}}{C}$ , – CH₃ are –R group which is deactivating

– $\ddot{N} H$ – $\overset{\begin{array}{l} O \\ | ? | \end{array}}{C}$ – CH₃ and – $\ddot{N} H$ – CH₃ due to presence of lone pair in nitrogen atom behaves as activating (+R) group.

–C º N <math> <mrow> <mo>? </mo> <munder> <mrow> <mi>C</mi> </mrow> <mtable columnalign="left"> <mtr> <mtd> <mrow> <mo>|</mo> <mtext>? </mtext> <mo>|</mo> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mi>O</mi> </mrow> </mtd> </mtr> </mtable> <mrow></mrow> </munder> </mrow> </math> , <!- [if gte mso 9]><xml> <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1025" DrawAspect="Content" ObjectID="_1820323086"> </o:OLEObject></xml><! [endif]->– CH3 are –R group which is deactivating– <math> <mrow> <mover accent="true"> <mi>N</mi> <mo>¨</mo> </mover> <mi>H</mi> </mrow> </math> <!- [if gte mso 9]><xml> <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1026" DrawAspect="Content" ObjectID="_1820323087"> </o:OLEObject></xml><! [endif]->– <math> <mrow> <mover> <mrow> <mi>C</mi> </mrow> <mtable columnalign="left"> <mtr> <mtd> <mrow> <mi>O</mi> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mo>|</mo> <mtext>? </mtext> <mo>|</mo> </mrow> </mtd> </mtr> </mtable> </mover> </mrow> </math> <!- [if gte mso 9]><xml> <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1027" DrawAspect="Content" ObjectID="_1820323088"> </o:OLEObject></xml><! [endif]->– CH3 and – <math> <mrow> <mover accent="true"> <mi>N</mi> <mo>¨</mo> </mover> <mi>H</mi> </mrow> </math> <!- [if gte mso 9]><xml> <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1028" DrawAspect="Content" ObjectID="_1820323089"> </o:OLEObject></xml><! [endif]->– CH3 due to presence of lone pair in nitrogen atom behaves as activating (+R) group.