Download App

4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
Which of the following conditions is not correct for resonating structures?
  • A
    The contributing structures must have the same number of unpaired electrons
  • B
    The contributing structures should have almost similar energies
  • ✓
    The contributing structures should be so written that unlike charges reside on  atoms that are far apart
  • D
    The positive charge should be present on the electropositive element and the  negative charge on the electronegative element
✓

Answer

Correct option: C.
The contributing structures should be so written that unlike charges reside on  atoms that are far apart
c
There is no restrictions that resonating structures should have $+ve$ and $-ve$ charges on atoms that are for apart.

While other statements are correct.

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 4. Chemical bonding and molecular structure→4. Chemical bonding and molecular structure — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Correct configuration of the following is
→
The formation of $N{O_2}$ in the reaction $2NO + {O_2}$ $\rightleftharpoons$ $2N{O_2}$ + heat is favoured by
→
Which is lewis acid ?
→
The $IUPAC$ name of${(C{H_3})_2}CH - C{H_2} - C{H_2}Br$ is
→
Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$:

Assertion $A$ : The stability order of +$1$ oxidation state of $\mathrm{Ga}$, In and $\mathrm{Tl}$ is $\mathrm{Ga}<\mathrm{In}<\mathrm{Tl}$.

Reason $R$ : The inert pair effect stabilizes the lower oxidation state down the group.

In the light of the above statements, choose the correct answer from the options given below :

→
Indicate the organic structure for the product expected when $2-$methyl propene is heated with acetyl chloride in presence of anhydrous zinc chloride
→
The most common oxidation state of an element is $-2.$  The number of electrons present in its outermost shell is
→
Heat of neutralization of the acid-base reaction is $57.32\, kJ$  for
→
Which of the following is Baeyer's reagent :
→
$2{x_{6(g)}} \rightleftharpoons 4{x_{3(g)}}$

a $20\ L$ box containing $X_6$ and $X_3$ at equilibrium at $1500\ K$  . $K_p = 4 \times 10^{18}\  atm$ . Assuming ${P_{{x_3}}} >  > {P_{{x_6}}}$ and total pressure is $10\ atm$ .The partial pressure of $X_6$ will be

→