NSTSE Answer Keys


Class 1 | Paper Code – UN449

1 A 11 A 21 C 31 D
2 B 12 D 22 A 32 A
3 D 13 C 23 B 33 D
4 C 14 B 24 C 34 A
5 A 15 C 25 D 35 B
6 C 16 A 26 A 36 B
7 A 17 B 27 D 37 B
8 C 18 C 28 C 38 A
9 A 19 A 29 A 39 C
10 C 20 A 30 A 40 A

Class 2 | Paper Code – UN449

1 B 11 B 21 C 31 B 41 B
2 D 12 D 22 C 32 B 42 D
3 B 13 B 23 C 33 C 43 B
4 A 14 C 24 C 34 C 44 B
5 D 15 A 25 A 35 C 45 C
6 D 16 C 26 B 36 A 46 C
7 A 17 B 27 C 37 D 47 B
8 C 18 A 28 D 38 A 48 B
9 B 19 A 29 D 39 D 49 A
10 D 20 B 30 C 40 B 50 B

Class 3 | Paper Code – UN449

1 D 11 C 21 C 31 B 41 B 51 D
2 C 12 D 22 B 32 B 42 D 52 C
3 B 13 D 23 B 33 A 43 B 53 A
4 D 14 C 24 B 34 D 44 C 54 C
5 C 15 B 25 C 35 C 45 C 55 B
6 B 16 B 26 A 36 D 46 C 56 A
7 D 17 A 27 B 37 C 47 D 57 B
8 A 18 A 28 C 38 A 48 D 58 D
9 A 19 A 29 A 39 B 49 C 59 A
10 B 20 B 30 C 40 D 50 D 60 A

Class 4 | Paper Code – UN449

1 A 11 C 21 B 31 C 41 A 51 D
2 B 12 D 22 C 32 B 42 A 52 C
3 C 13 D 23 C 33 A 43 A 53 C
4 C 14 B 24 C 34 D 44 A 54 D
5 A 15 A 25 A 35 D 45 D 55 C
6 D 16 A 26 C 36 A 46 D 56 B
7 D 17 D 27 B 37 A 47 D 57 C
8 A 18 A 28 A 38 C 48 C 58 D
9 B 19 C 29 A 39 C 49 D 59 B
10 C 20 A 30 A 40 B 50 C 60 B



Class 5 | Paper Code – UN449

1 B 11 A 21 D 31 D 41 A 51 C
2 B 12 B 22 C 32 D 42 B 52 C
3 B 13 D 23 D 33 A 43 B 53 D
4 C 14 A 24 A 34 C 44 D 54 A
5 C 15 C 25 B 35 D 45 A 55 C
6 A 16 B 26 C 36 C 46 C 56 D
7 C 17 A 27 C 37 A 47 C 57 B
8 D 18 A 28 D 38 A 48 D 58 C
9 A 19 B 29 B 39 C 49 B 59 C
10 A 20 A 30 D 40 C 50 B 60 A

Class 6 | Paper Code – UN449

1 B 11 D 21 D 31 C 41 C 51 A
2 B 12 C 22 B 32 A 42 C 52 C
3 D 13 C 23 A 33 A 43 A 53 B
4 C 14 D 24 A 34 D 44 C 54 C
5 D 15 B 25 C 35 A 45 C 55 D
6 B 16 D 26 B 36 C 46 D 56 C
7 C 17 C 27 B 37 D 47 B 57 B
8 A 18 C 28 C 38 C 48 C 58 B
9 B 19 D 29 B 39 B 49 D 59 D
10 D 20 B 30 C 40 C 50 C 60 C

Class 7 | Paper Code – UN449

1 D 11 C 21 C 31 C 41 D 51 D
2 B 12 A 22 B 32 A 42 C 52 A
3 C 13 A 23 A 33 D 43 D 53 C
4 A 14 B 24 C 34 A 44 C 54 A
5 C 15 C 25 B 35 D 45 C 55 D
6 B 16 B 26 B 36 D 46 C 56 A
7 C 17 C 27 D 37 B 47 D 57 C
8 A 18 A 28 C 38 D 48 D 58 B
9 C 19 A 29 D 39 C 49 B 59 C
10 B 20 C 30 B 40 B 50 B 60 C

Class 8 | Paper Code – UN449

1 B 11 D 21 D 31 D 41 A 51 C
2 C 12 B 22 C 32 C 42 B 52 A
3 A 13 B 23 D 33 D 43 D 53 B
4 C 14 B 24 C 34 A 44 A 54 B
5 C 15 B 25 D 35 A 45 A 55 B
6 B 16 D 26 C 36 D 46 B 56 D
7 C 17 C 27 D 37 D 47 B 57 C
8 D 18 A 28 A 38 D 48 A 58 B
9 A 19 C 29 D 39 C 49 C 59 C
10 B 20 B 30 C 40 B 50 A 60 D

Class 9 | Paper Code – UN449

1 C 11 B 21 D 31 B 41 D 51 C
2 B 12 D 22 A 32 B 42 D 52 D
3 A 13 D 23 B 33 A 43 C 53 A
4 A 14 C 24 C 34 B 44 D 54 D
5 A 15 B 25 B 35 C 45 B 55 B
6 A 16 B 26 D 36 C 46 B 56 A
7 C 17 B 27 D 37 B 47 D 57 C
8 D 18 D 28 D 38 D 48 A 58 A
9 C 19 B 29 D 39 D 49 B 59 A
10 D 20 B 30 C 40 A 50 A 60 A

Class 10 | Paper Code – UN449

1 A 11 B 21 C 31 D 41 C 51 A
2 A 12 C 22 A 32 D 42 B 52 B
3 B 13 A 23 A 33 C 43 D 53 A
4 D 14 C 24 D 34 C 44 B 54 C
5 B 15 D 25 A 35 B 45 C 55 B
6 B 16 B 26 C 36 D 46 B 56 C
7 D 17 D 27 C 37 A 47 A 57 C
8 C 18 A 28 B 38 C 48 B 58 C
9 D 19 B 29 A 39 C 49 D 59 D
10 B 20 A 30 B 40 D 50 D 60 D

Class 11(PCB) | Paper Code – UN449

1 A 11 B 21 D 31 A 41 C 51 D
2 D 12 B 22 D 32 B 42 C 52 C
3 B 13 B 23 D 33 C 43 B 53 A
4 C 14 C 24 A 34 D 44 A 54 B
5 A 15 B 25 D 35 A 45 A 55 C
6 B 16 B 26 D 36 A 46 A 56 D
7 C 17 C 27 B 37 C 47 C 57 D
8 D 18 C 28 A 38 B 48 B 58 D
9 B 19 D 29 D 39 D 49 B 59 C
10 B 20 C 30 A 40 C 50 B 60 B

Class 11(PCM) | Paper Code – UN449

1 D 11 C 21 D 31 A 41 C 51 D
2 D 12 C 22 C 32 B 42 C 52 C
3 B 13 A 23 B 33 C 43 B 53 A
4 D 14 C 24 D 34 D 44 A 54 B
5 C 15 B 25 A 35 A 45 A 55 C
6 C 16 A 26 D 36 A 46 A 56 D
7 B 17 D 27 B 37 C 47 C 57 D
8 B 18 C 28 A 38 B 48 B 58 D
9 A 19 A 29 D 39 D 49 B 59 C
10 A 20 A 30 A 40 C 50 B 60 B
Class 12(PCB) | Paper Code – UN449

1 C 11 B 21 B 31 C 41 D 51 A
2 B 12 D 22 D 32 A 42 A 52 B
3 D 13 A 23 B 33 B 43 D 53 B
4 C 14 C 24 D 34 C 44 C 54 A
5 D 15 C 25 C 35 C 45 A 55 D
6 D 16 B 26 D 36 A 46 C 56 C
7 B 17 D 27 B 37 C 47 A 57 D
8 D 18 B 28 D 38 B 48 A 58 B
9 D 19 A 29 C 39 D 49 C 59 B
10 B 20 A 30 D 40 D 50 C 60 B
Class 12(PCM) | Paper Code – UN449

1 A 11 B 21 D 31 C 41 D 51 A
2 C 12 B 22 B 32 A 42 A 52 B
3 C 13 B 23 B 33 B 43 D 53 B
4 A 14 D 24 B 34 C 44 C 54 A
5 B 15 A 25 C 35 C 45 A 55 D
6 B 16 D 26 D 36 A 46 C 56 C
7 D 17 C 27 B 37 C 47 A 57 D
8 C 18 A 28 D 38 B 48 A 58 B
9 D 19 D 29 C 39 D 49 C 59 B
10 B 20 A 30 D 40 D 50 C 60 B

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