reaction of haloalkane and KOH

1. The problem statement, all variables and given/known data

can someone tell me what is the question part c all about?

i have attached the model ans as well. can someone please explain how P and Q react to form compound T ? i have no idea how it's going on . what kind of reaction is that?



The product of P and Q is methyl propene .. how to get that? can someone show me the mechanism?







2. Relevant equations







3. The attempt at a solution

Attached Images

	IMG_20140731_010815.jpg (100.1 KB)
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	IMG_20140731_025352[1].jpg (91.9 KB)