Download App

8.4. Organic chemistry reaction mechanism — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry8.4. Organic chemistry reaction mechanism1 Mark
MCQ
When benzene diazonium chloride treated with $\beta -$ naphthol in alkaline medium a coupling reaction takes place and result into formation of azodye. In this reaction benzene diazonium chloride act as
  • A
    Electrophile
  • B
    Nucleophile
  • C
    Free radical
  • ✓
    None of these
✓

Answer

Correct option: D.
None of these
d
$-\mathrm{CH}_3$ shows $+\mathrm{M}$ and $+\mathrm{I}$.

$-\mathrm{Cl}$ shows $+\mathrm{M}$ and $-\mathrm{I}$ but inductive effect dominates.

$-\mathrm{NO}_2$ shows $-\mathrm{M}$ and $-\mathrm{I}$.

Electrophilic substitution $\alpha \frac{1}{-\mathrm{M} \text { and }-\mathrm{I}}$

$\alpha+\mathrm{M} \text { and }+\mathrm{I}$

Hence, order is $\mathrm{B}>\mathrm{A}>\mathrm{C}>\mathrm{D}$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 8.4. Organic chemistry reaction mechanism→8.4. Organic chemistry reaction mechanism — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which among the following species has the highest ionisation potential
→
A petroleum fraction having boiling range $70-200\,^oC$ and containing $6-10$ carbon atoms per molecule is called
→
The correct thermodynamic conditions for the spontaneous reaction at all temperature is:
→
Which of the following is the Fischer projection of $L-$ threonine (also known as  $(2S, 3R) \, 2-$ amino $-3-$ hydroxybutanoic acid) ?
→
Among the elements $Ca, Mg, P$ and $Cl,$ the order of increasing atomic radii is
→
In Kjeldahl's method for estimation of nitrogen, CuSO4 acts as:
→
What is the equivalent weight of $H_3PO_3$ in the following dispropornation reaction

$H_3PO_3 \to H_3PO_4 + PH_3$

→
Which of the following has tetrahedral structure
→
Which of the following reactants is suitable for preparation of methane and ethane  by using one step only ?
→
$C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C\equiv CH+\underset{\begin{smallmatrix} 
 Lithium\, \\ 
 amide 
\end{smallmatrix}}{\mathop{LiN{{H}_{2}}}}\,\to (A)\xrightarrow{{{(C{{H}_{3}})}_{2}}S{{O}_{4}}}(B)$

Give the structural formula of compound $(B)$

→