2367: Match List I (Oxdiation number) with List II (The element) and select the correct answer using the codes given below this lists:
List I List II
(Oxidation number) (The element)
A. 2 1. Oxidation number of Mn in MnO2
B. 3 2. Oxidation number of S in H2S2O7
C. 4 3. Oxidation number of Ca in CaO2
D. 6 4. Oxidation number of Al in NaAIH4
Codes:
A B C D
(a) 3 4 1 2
(b) 4 3 1 2
(c) 3 4 2 1
(d) 4 3 2 1
2369: The following persons came to India at one time or another :
I. Fa-Hien
II. I-Tsing
III. Megasthenese
IV. Hieun-Tsang
The correct chronological sequence of their visits is :
(a) III, I, II, IV
(b) III, I, IV, II
(c) I, III, II, IV
(d) I, III, IV, II