The chloropicrin is trichloro , nitro methane ,

i.e , CCl₃NO₂ .

Artificial silk is rayon .

CH₃CHO + CH₃MgI $\stackrel{\mathrm{Ether}}{\to }$ (CH₃)₂CH-OMgI (X) $\stackrel{\mathrm{Hydrolysis}}{\to }$ (CH₃)₂CHOH (Y)

The ester linkage is present in dacron

(terylene or dacron)

Lecithin is an example of phospholipids .

Structure of lecithin is ;

Two moles of acetic acid (Ethanoic acid) are heated with P₂O₅ , product formed is acetic anhydride .P₂O₅ act as dehydrating agent .

 ^{$\stackrel{{\mathrm{P}}_2{\mathrm{O}}_5}{\to }$} 

Williamson's synthesis : A reaction in which sodium or potasium alkoxide is heated with an alkyl halide to give ether by the reaction sample as well as mixed ethers can be prepared .This is an example of nucleophilic substitution and follows S_N2 mechanism .

RONa + XR $\stackrel{∆}{\to }$ $\underset{\mathrm{simple}}{\mathrm{ROR}}$ + $\underset{\mathrm{ether}}{\mathrm{NaX}}$

RONa + XR^' $\stackrel{∆}{\to }$ $\underset{\mathrm{mixed} \mathrm{ether}}{\mathrm{R}-\mathrm{O}-\mathrm{R}\text{'}}$ + NaX

In the presence of tetrafluoroboric acid , alcohols react with diazomethane (CH₂N₂) to form methyl ethers in excellent yield .

$\underset{\mathrm{alcohol}}{\mathrm{ROH}}$ + $\underset{\mathrm{diazo} \mathrm{methane}}{{\mathrm{CH}}_2{\mathrm{N}}_2}$ $\stackrel{{\mathrm{HBF}}_4}{\to }$ $\underset{\mathrm{methoxy} \mathrm{ethane} \left(\mathrm{ether}\right)}{{\mathrm{ROCH}}_3}$ + N₂

Nylon - 66 also known as common fibres because it is used in the manufacturing carpets , textile fibres .