MCQ
Which of the following electronic configuration represent representative elements
  • A
    $ns^{1,2}\,\,np^{1-5}$
  • $ns^{1,2}\,\,np^{0-5}$
  • C
    $ns^{1,2}\,\,np^{0-6}$
  • D
    $ns^{1,2}\,\,np^{1-6}$

Answer

Correct option: B.
$ns^{1,2}\,\,np^{0-5}$
b
Representative elements are $s$ and $p-$ block element.

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$\mathop {\mathop C\limits^ \oplus  {H_3}}\limits_{(a)} $ $\mathop {\begin{array}{*{20}{c}}
  {C{H_2} - \mathop C\limits^ \oplus  {H_2}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,F\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}}\limits_{(b)} $ $\mathop {\begin{array}{*{20}{c}}
  {C{H_2} - \mathop C\limits^ \oplus  {H_2}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {Br\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}}\limits_{(c)} $ $\mathop {\begin{array}{*{20}{c}}
  {C{H_2} - \mathop C\limits^ \oplus  {H_2}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}}\limits_{(d)} $

The $IUPAC$ name of the compound having structure ${C_2}{H_5} - \mathop {\mathop {C - }\limits_{||\,\,\,\,} }\limits_{C{H_2}} \mathop {\mathop {CH - }\limits_{|\,\,\,\,\,\,\,\,\,} }\limits_{C{H_3}\,\,} C{H_3}$ is