Download App

9. Hydricarbon — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry9. Hydricarbon1 Mark
MCQ
Benzene shows
  • A
    Substitution
  • B
    Addition
  • C
    Oxidation
  • ✓
    All of these
✓

Answer

Correct option: D.
All of these
d
There are delocalised electrons above and below the plane of the ring. The presence of the delocalised electrons makes benzene particularly stable.

Benzene resists addition reactions because that would involve breaking the delocalisation and losing that stability.

An alkylbenzene is simply a benzene ring with an alkyl group attached to it. ... Alkyl groups are usually fairly resistant to oxidation. However, when they are attached to a benzene ring, they are easily oxidised by an alkaline solution of potassium manganate($VII$) (potassium permanganate).

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. Hydricarbon→9. Hydricarbon — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Number of electrons in $ - CON{H_2}$ is
→
In which of the following compounds does hydrogen bonding occur
→
The incorrect statement regarding above reactions is

$\mathop {Al}\limits_{metal} \xrightarrow[{(aq.)}]{{HCl}}'X' + Gas\,'P'$

$\mathop {Al}\limits_{metal} \xrightarrow[{ + {H_2}O}]{{NaOH\,(aq.)}}'Y' + Gas\,'Q'$

→
The mixture of salt and naphthalene is separated :
→
$CH _3- MgBr$ and $\left( C _2 H _5\right)_2 CuLi$ are _____________ .
→
The order of relative reactivity of the given halides towards $S_N1$ reaction is
→
How many moles of lead $(II)$ chloride will be formed from a reaction between $6.5\ g$ of $PbO$ and $3.2\ g\ HCl$ ?
→
The more positive the value of $\text{E}^\ominus,$ the greater is the tendency of the species to get reduced. Using the standard electrode potential of redox couples given below find out which of the following is the strongest oxidising agent:

$\text{E}^{\ominus}\text{values:}$ $\text{Fe}^{3+}/ \text{ Fe}^{2+}=+0.77;\text{I}_2(\text{S})/\text{ I}^-=+0.54;$

$\text{Cu}^{2+}/\text{ Cu}=+0.34;\text{Ag}^+/\text{ Ag}=+0.80\text{V}$

→
Assign $A, B, C, D$ from given type of reaction. ${K_2}Mn{O_4} + {H^ + } \longrightarrow KMn{O_4} + Mn{O_2} \downarrow $
→
In Heisenberg's uncertainty equation $\Delta x \times \Delta p \ge \frac{h}{{4\pi }}$; $\Delta p$ stands for
→