Download App

STD 11 - 8.4. Organic chemistry reaction mechanism — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 8.4. Organic chemistry reaction mechanism4 Marks
MCQ
Which among the following is incorrect statement?
  • A
    Electromeric effect dominates over inductive effect
  • B
    The electromeric effect is, temporary effect
  • C
    The organic compound shows electromeric effect in the presence of the reagent only
  • ✓
    Hydrogen ion $\left(\mathrm{H}^{+}\right)$shows negative electromeric effect
✓

Answer

Correct option: D.
Hydrogen ion $\left(\mathrm{H}^{+}\right)$shows negative electromeric effect
d
Hydrogen ion $\left(\mathrm{H}^{+}\right)$shows positive electromeric effect.

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

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Given below are two statements :
1 M aqueous solution of each of $\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}, \mathrm{AgNO}_{3}$, $\mathrm{Hg}_{2}\left(\mathrm{NO}_{3}\right)_{2} ; \mathrm{Mg}\left(\mathrm{NO}_{3}\right)_{2}$ are electrolysed using inert electrodes,
Given : $\mathrm{E}_{\mathrm{Ag}^{+} / \mathrm{Ag}}^{\theta}=0.80 \mathrm{~V}, \mathrm{E}_{\mathrm{Hg}_{2}^{2+} / \mathrm{Hg}}^{\theta}=0.79 \mathrm{~V}$,
$\mathrm{E}_{\mathrm{Cu}^{2+} / \mathrm{Cu}}^{\theta}=0.24 \mathrm{~V}$ and $\mathrm{E}_{\mathrm{Mg}^{2+} / \mathrm{Mg}}^{\theta}=-2.37 \mathrm{~V}$
Statement (I) : With increasing voltage, the sequence of deposition of metals on the cathode will be $\mathrm{Ag}, \mathrm{Hg}$ and Cu
Statement (II) : Magnesium will not be deposited at cathode instead oxygen gas will be evolved at the cathode.
In the light of the above statement, choose the most appropriate answer from the options given below
→
Sulphuric acid provides a example of
→
In the given conversion best yield will obtained with
→
The number of $d$ electrons in $F{e^{ + 2}}$ (atomic number of $Fe = 26$) is not equal to that of the
→
Which of the following compound undergo cannizaro reaction

$(a)$ $HCHO$          $(b)$ $C_6H_5-CHO$

$(c)$ $\begin{array}{*{20}{c}}
  {\,\,C{H_3}} \\ 
  {\,|\,\,\,\,\,} \\ 
  {C{H_3} - C - CHO} \\ 
  {|\,\,\,} \\ 
  {\,\,C{H_3}\,} 
\end{array}$           $(d)$ $Ph-CH_2-CHO$

→
The interaction between $\pi$ bond and lone pair of electrons present on an adjacent atom is responsible for
→
Among the following free radical bromination reactions, select those in which $2^o$ halide is the major product
→
The enzyme ptylin used for the digestion of food is present in
→
Deficiency of which vitamin causes rickets
→
On passing a current of $HCl$ gas in a saturated solution of $NaCl,$ the solubility of $NaCl$
→