MCQ
Which of the following represents Huckle's rule
- A$(4n)\pi \,{e^\Theta }$
- ✓$(4n+2)\pi \,{e^\Theta }$
- C$(4n+1)\pi \,{e^\Theta }$
- D$(2n+2)\pi \,{e^\Theta }$
✓
Answer
Correct option: B.
$(4n+2)\pi \,{e^\Theta }$
b
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
One energy difference between the states $n = 2$ and $n = 3$ is $E\ eV$ , in hydrogen atom. The ionisation potential of $H$ atom is ............. $\mathrm{E}$
→Action of hydrogen chloride on $\mathop {\mathop {C{H_3} - C = C{H_2}}\limits_| }\limits_{\,\,\,\,\,C{H_3}} $ and on $CH \equiv CH$ will predominantly give the compounds, respectively
→It can be shown using mass spectrometry that the ratio of naturally occurring chlorine -35 to its isotope chlorine -37 is 3 : 1. Assuming that no other isotopes existed, what would be the atomic weight of chlorine?
The molar heat capacity of water at constant pressure is $75$ $J{K^{ - 1}}\,\,mo{l^{ - 1}}$. When $1.0 \,kJ $ of heat is supplied to $100\, g$ of water which is free to expand, the increases in temperature of water is
→The equilibrium constant $K_{c}$ at $298\, \mathrm{~K}$ for the reaction $\mathrm{A}+\mathrm{B} \rightleftharpoons \mathrm{C}+\mathrm{D}$ is $100 .$ Starting with an equimolar solution with concentrations of $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$ all equal to $1\, \mathrm{M}$, the equilibrium concentration of $D$ is $.......\times 10^{-2}$ M. (Nearest integer)
→"On moving left to right ionisation energy increases due to increasing $Z_{eff}"$
→In which of the following pair above statement is $NOT$ $CORRECT$ ?
Which of the following order of molecular force of attraction among given species is incorrect?
which is not correct about $(I)$
→In Balmer series of hydrogen atom spectrum which electronic tranition causes third line
An aqueous solution containing compounds $A$ and $B$ shows optical activity. $A$ and $B$ are stereoisomers. Which of the following possibilities cannot be correct ?
→