carbon and itc compounds class 10

4:12:37

22:26

1:53:52

9:08:35

4:33:19

3:25:11

36:26

2:03:10

3:01:39

1:50:25

2:40:26

2:19:36

1:33:58

3:11:15

1:21:26

23:18

41:55

1:29

18:09

38:27

16:41

35:24

3:49:06

39:15

11:21

56:44

42:28

4:29

3:02:36

3:59:48

4:19:36

51:12

47:06

1:38:51

2:23:45

1:18:35

47:45

51:21

33:33

8:24:13

32:31

5:17

53:51

3:02:37

27:12

1:08:36

2:44:47

34:31

56:19

1:16:40

36:26

40:45

38:18

51:36

2:04:36

15:26

2:25:24

47:09

37:59

1:00:59