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Arrange the following elements in the increasing order of number of unpaired electrons in it. (A) Sc (B) Cr (C) V (D) Ti (E) Mn Choose the correct answer from the options given below:

1. (C) < (E) < (B) < (A) < (D)
2. (B) < (C) < (D) < (E) < (A)
3. (A) < (D) < (C) < (B) < (E)
4. (A) < (D) < (C) < (E) < (B)

Correct answer: (A) < (D) < (C) < (E) < (B)

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