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List-I contains various reaction sequences and List-II contains the possible products. Match each entry in List-I with the appropriate entry in List-II and choose the correct option. List-I List-II (P) (i) O 3 , Zn (ii) aq. NaOH,  (iii) ethylene glycol, PTSA (iv)

1. BH 3 ,
2. H 2 O 2 , NaOH (v) H 3 O + (vi) NaBH 4 (1) CH 3 HO OH (Q) (i) O 3 , Zn (ii) aq. NaOH,  (iii) ethylene glycol, PTSA (iv) (a) BH 3 , (b) H 2 O 2 , NaOH (v) H 3 O + (vi) NaBH 4 CH 3 (2) CH 3 HO OH (R) (i) ethylene glycol, PTSA (ii) (a) Hg(OAc), H 2 O, NaBH 4 (iii) H 3 O + (iv) NaBH 4 CH 3 O (3) OH OH (S) (i) ethylene glycol, PTSA (ii) (a) BH 3 , (b) H 2 O 2 , NaOH (iii) H 3 O + (iv) NaBH 4 CH 3 O (4) CH 3 HO OH (5) CH 3 OH OH (A) P-3, Q-5, R-4, S-1 (B) P-3, Q-2, R-4, S-1
3. P-3, Q-5, R-1, S-4
4. P-5, Q-2, R-4, S-1

Correct answer: BH 3 ,

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