1
LEC#1 HALOGENS
53:49
3
LEC#16 COMPOUNDS OF XENON
41:11
5
LEC#17 SULPHURIC ACID (PART-2)
38:05
7
LEC#8 OXYACIDS (PART-1)
28:45
9
LEC#6 OXIDES OF HALOGENS
36:28
12
LEC#9 OXYACIDS (PART-2)
27:30
13
LEC#11 BLEACHING POWDER (PART-1)
25:02
14
LEC#12 BLEACHING POWDER (PART-2)
24:29
17
LEC#10 PERCHLORIC ACID
19:41
18
LEC#14 NOBLE GASES
27:56

LEC#13 COMMERCIAL USES OF HALOGENS & THEIR COMPOUNDS