Given below are two statements: Statement I: Tropolone is an arom… - Vidyadip

MCQ

Given below are two statements:

Statement $I$: Tropolone is an aromatic compound and has $8 \pi$ electrons.

Statement $II$: $\pi$ electrons of $ > C = O$ group in tropolone is involved in aromaticity.

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

A
Both Statement $I$ and Statement $II$ are true
✓
Statement $I$ is true but Statement $II$ is false
C
Statement $I$ is false but Statement $II$ is true
D
Both Statement $I$ and Statement $II$ are false

✓

Answer

Correct option: B.

Statement $I$ is true but Statement $II$ is false

b
Tropolone is an aromatic compound and has $8 \pi$ electrons $\left(6 \pi e ^{-}\right.$are endocyclic and $2 \pi e^{-}$ are exocyclic) and $\pi$ electrons of $ > C = O$ group in tropolone is not involved in aromaticity.

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

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

Similar questions

Which of the following compounds is not chiral

Match the column and find correct answer

Column $-I$	Column $-II$
$(i)$ $n-$ Butane $\to 2-$ methyl propane	$(A)$ Free redical substitution
$(ii)$ $C{H_4} + C{l_2} \xrightarrow{{hv}} C{H_3} + Cl$	$(B)$ Wurtz reaction
$(iii)$ $R - COONa\xrightarrow{{soda - \lim e}}R - H$	$(C)$ Isomerism
$(iv)$ $R - X + Na\xrightarrow{{{\text{E}}ther}}R - R$	$(D)$ De-carboxylation

One mole of $PCl_5$ is heated in a closed container of one litre capacity. At equilibrium, $20\%$ $PCl_5$ is not dissociated. What should be the value of $K_C$ ?

Which of the following is optically active

How many enol form is possible for $\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C{H_2} - C - C{H_2} - C{H_2} - C{H_3}}
\end{array}$ (including stereoisomers) will be ?

Which one of the following is used to remove most of plutonium from spent nuclear fuel?

Number of shared electrons in between carbon-carbon atoms in ethylene molecule is

Which of the following xenon-oxo compounds may not be obtained by hydrolysis of xenon fluorides?

The energy of a radiation of wavelength $8000\,\mathop A\limits^o $ is ${E_1}$ and energy of a radiation of wavelength $16000 \,\mathop A\limits^o$ is ${E_2}$. What is the relation between these two

Fusion of $MnO _2$ with $KOH$ in presence of $O _2$ produces a salt $W$. Alkaline solution of $W$ upon eletrolytic oxidation yields another salt $X$. The manganese containing ions present in $W$ and $X$, respectively, are $Y$ and $Z$. Correct statement($s$) is (are)

$(1)$ $Y$ is diamagnetic in nature while $Z$ is paramagnetic

$(2)$ Both $Y$ and $Z$ are coloured and have tetrahedral shape

$(3)$ In both $Y$ and $Z , \pi$-bonding occurs between $p$-orbitals of oxygen and $d$-orbitals of manganese.

$(4)$ In aqueous acidic solution, $Y$ undergoes disproportionation reaction to give $Z$ and $MnO _2$.