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Mention the major product formed in the ...

Mention the major product formed in the following reaction:
i)
ii) 2-bromopentane `overset("alc KOH")rarr`
iii) `CH_(3)Br+" Nal" overset("dry acetone")rarr` 

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i)
ii) `"2 - bromopentane "overset("alc KOH")rarr CH_(3)-CH=CH-CH_(2)-CH_(3)`
iii) `CH_(3)I+"Nal "overset("dry acetone")rarr CH_(3)-I`
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