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Decreasing order of dehydration of the following alcohols is (a)  (b)  OH  (c)  OH  OH  (d)  OH 

1. (b) > (a) > (d) > (c)
2. (a) > (d) > (b) > (c)
3. (b) > (d) > (c) > (a)
4. (d) > (b) > (c) > (a)

Correct answer: (b) > (d) > (c) > (a)

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