Question
Explain Hofmann elimination.###Write a note on Hoffmann elimination.
✓
Answer
When tetra alkyl ammonium halide is heated with moist silver hydroxide, a quaternary ammonium hydroxide is obtained. Quaternary ammonium hydroxides are deliquescent crystalline solids and are basic in nature. Quaternary ammonium hydroxides on strong heating undergo $\wedge$-elimination to give tertiaryamine, alkenes and water, the reaction is called Hofmann elimination. The major product is least substituted alkene.
For example :
For example :
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
What is the action of dioxygen on:
(a) Calcium (b) Iron (c) Carbon disulphide?
(a) Calcium (b) Iron (c) Carbon disulphide?
How does Schottky defect arise?
Calculate the potential of the following cell at $25^{\circ} C$ :
$\begin{aligned}
& Zn \left| Zn ^{2+}(0.6 M ) \| H ^{+}(1.2 M )\right| H _2( g , 1 atm ) \mid Pt \\
& E ^{\circ} Zn 2+/ Zn =-0.763 V
\end{aligned}$
→$\begin{aligned}
& Zn \left| Zn ^{2+}(0.6 M ) \| H ^{+}(1.2 M )\right| H _2( g , 1 atm ) \mid Pt \\
& E ^{\circ} Zn 2+/ Zn =-0.763 V
\end{aligned}$
Give VBT description of bonding in each of following complexes. Predict their magnetic behaviour.
Silver crystallises in $\text{F.C.C.} ($face$-$centered cubic crystal$)$ structure. The edge length of the unit cell is found to be $408.7 \ pm.$ Calculate density of the unit cell. $[$Given: Molar mass of silver is $108 \ g \ mol^{-1}].$
→Amorphous solids do not have sharp melting points. Explain.
Write the two cyclic structures of $\alpha- D -(-)$-fructofuranose and $\beta- D -(-)$-fructofuranose exist in equilibrium with open chain structure.
→$35 \%$ (W/W) solution of ethylene glycol in water, an anti-freezer used in automobiles in radiators as a coolant. It lowers freezing point of water to $-17.6^{\circ} C$. Calculate the mole fraction of the components.
→$2000 m$ mol of an ideal gas expanded isothermally and reversibly from $20 L$ to $30 L$ at $300 K,$ calculate the work done in the process $(R= 8.314 \ JK^{-1} \ mol^{-1})$
→Write main specialities of Buna-S, Neoprene rubber?