Give the reaction of the following `:`
`i.`
`ii.` `2-`Bromo butane `+ C_(2)H_(5)Ona(` three products `)`
`iii.` `4-`Iodo`-4-n-`propyl heptane `+C_(2)H_(5)Ona`
`iv.` Give the reactivity order of the following bases `:`
` HO^(Θ),RO^(Θ),RCOO^(Θ),CN^(Θ),NO^(Θ)`,

Explanation

`i.`
`ii.`
`iii.`
`iv.` Add `H^(o+)` to each `CB` and find acidic acid and then reverse them for the basic order.
(Acid `: HOH, ROH, RCOOH, HCN, HNO_(3))`
Acidic order : `HNO_(3) gt RCOOH gt HCN lt H_(2)O lt ROH`
Basic order :
`NO_(3)^(Θ) lt RCOO^(Θ) lt CN^(Θ) lt O^(Θ)H lt RO^(Θ)`