What is the order of ease of dehydrohalogenat | vedclass

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(A) The dehydrohalogenation of alkyl halides follows the $E2$ mechanism,where the rate depends on the stability of the resulting alkene.According to t

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$3^{\circ} > 2^{\circ} > 1^{\circ}$

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(A) The dehydrohalogenation of alkyl halides follows the $E2$ mechanism,where the rate depends on the stability of the resulting alkene.According to the Saytzeff rule,more substituted alkenes are more stable.The stability order of alkenes is: $R_2C=CR_2 > R_2C=CHR > R_2C=CH_2 > RCH=CH_2$.Since $3^{\circ}$ alkyl halides form more substituted (stable) alkenes compared to $2^{\circ}$ and $1^{\circ}$ alkyl halides,the order of ease of dehydrohalogenation is $3^{\circ} > 2^{\circ} > 1^{\circ}$.

Column-$I$	Column-$II$
$(i)$ $R-Cl + NaI \xrightarrow{\text{dry acetone}} R-I + NaCl$	$(a)$ Swarts reaction
$(ii)$ $CH_3-Br + AgF \xrightarrow{\Delta} CH_3-F + AgBr$	$(b)$ Wurtz reaction
$(iii)$ $R-X + Mg$ $\xrightarrow{\text{dry ether}} R-Mg-X$ $\xrightarrow{H_2O} RH + Mg(OH)X$	$(c)$ Finkelstein reaction
	$(d)$ Grignard reaction

What is the order of ease of dehydrohalogenation of alkyl halides?

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