Download App

9. Amines — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry9. Amines1 Mark
MCQ
The correct statement regarding the basicity of arylamines is
  • A
    arylamines are generally more basic than alkylamines because of aryl group
  • B
    arylamines are generally more basic than alkylamines, because the nitrogen atom in arylamines is $sp-$hybridised
  • ✓
    arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalised by interaction with the aromatic ring $\pi -$electron system
  • D
    arylamines are generally more basic than alkylamines because the nitrogen lone-pair electrons are not delocalised by interaction with the aromatic ring $\pi -$electron system.
✓

Answer

Correct option: C.
arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalised by interaction with the aromatic ring $\pi -$electron system
c
Delocalized lone pair of nitrogen less basic

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 9. Amines→9. Amines — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Which of the following ions gives coloured solution
→
Complex which show linkage isomerism is
→
In above reaction molecular formula of glycerol increases by
→
The law of electrolysis were proposed by
→
Consider the sulphides $\mathrm{HgS}, \mathrm{PbS}, \mathrm{CuS}, \mathrm{Sb}_{2} \mathrm{~S}_{3}$, $\mathrm{As}_{2} \mathrm{~S}_{3}$ and $\mathrm{CdS}$. Number of these sulphides soluble in $50\, \% \,\mathrm{HNO}_{3}$ is .... .
→
Match each of the reactions given in Column $I$ with the corresponding product$(s)$ given in Column $II$.
Column $I$ Column $II$
$(A)$ $\mathrm{Cu}+$ dil $\mathrm{HNO}_3$ $(p)$ NO
$(B)$ $\mathrm{Cu}+$ conc $\mathrm{HNO}_3$ $(q)$ $\mathrm{NO}_2$
$(C)$ $\mathrm{Zn}+$ dil $\mathrm{HNO}_3$ $(r)$ $\mathrm{N}_2 \mathrm{O}$
$(D)$ $\mathrm{Zn}+$ conc $\mathrm{HNO}_3$ $(s)$ $\mathrm{Cu}\left(\mathrm{NO}_3\right)_2$
  $(t)$ $ \mathrm{Zn}\left(\mathrm{NO}_3\right)_2$
→
Which of the following complexes is not a chelate?
→
Identify the $A.$
→
$\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {R - C - OR \to RC{H_2}OH} 
\end{array}$
→
The number of chiral carbon atoms present in open chain structure of $D-(-)-$ fructose is
→