solution of isro paper 2010 electronics & communication

Hey guys..............
I am posting answer of ISRO 2010 papers key which is solved by me.....if any mistake than welcome your advice.........

ISRO-2012 ELECTRONICS AND COMMUNICATION

1-B
5-C
6-B
8-B
11-D
13-A
15-D
16-C
18-C
19-B
20-B
21-B
22-A
23-A
24-D
25-B
27-C
29-C
30-D
31-C
33-B
34-B
35-D
36-D
38-A
41-C
42-B
44-B
47-C
48-D
49-B
53-A
54-C
57-A
58-B
62-A
63-B(NOT SURE)
65-D
68-A
69-D
72-C
74-C(NOT SURE)
75-C
76-C
78-A
79-B


I will post previous year paper's key soon............;)
Best luck for your preparetation....