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The increasing order of the reactivity of the following with LiAlH 4 is (A) O || C 2 H 5 NH 2 (B) O || C 2 H 5 OCH 3 (C) O || C 2 H 5 Cl (D) O || C 2 H 5 O O || C 2 H 5

1. A < B < C < D
2. B < A < C < D
3. B < A < D < C
4. A < B < D < C

Correct answer: A < B < D < C

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