Dialkyl ethers react with very few reagents other acids. The only reactive sites that molecules of a dialkyl ether has to another reactive substance are the C H bonds of the alkyl groups and the O group of the ether linkage. Heating dialkyl ethers with very strong acids. (HI, HBr, and H_(2)SO_(4)) causes them to undergo reactions in which the carbon-oxygen bond breaks. When mixed ethers are used, the alcohol and alkyl iodide that form depend on the nature of the alkyl groups. Mechanism is by S_(N)^(2) reaction or S_(N)^(1). What is the coorect order of reactivity towards conc. HI assuming S_(N)^(2) type cleavage?

Dialkyl ethers react with very few reagents other acids. The only reac

1.	Dialkyl ethers react with very few reagents other acids. The only reactive sites that molecules of a dialkyl ether has to another reactive substance are the C H bonds of the alkyl groups and the O group of the ether linkage. Heating dialkyl ethers with very strong acids. (HI, HBr, and H_(2)SO_(4)) causes them to undergo reactions in which the carbon-oxygen bond breaks. When mixed ethers are used, the alcohol and alkyl iodide that form depend on the nature of the alkyl groups. Mechanism is by S_(N)^(2) reaction or S_(N)^(1). What is the coorect order of reactivity towards conc. HI assuming S_(N)^(2) type cleavage?
Answer» `I GT IV gt III gt I` `I gt III gt IV gt II` `II gt I gt IV gt III` `IV gt II gt III gt I` Answer :B