13729 PF + PR-7015 [ Turn over

CCE PF CCE PR

: 83-L

Code No. : 83-L Subject : SCIENCE / Physics, Chemistry & Biology

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i)

52

ii)

iii)

iv)

v)

vi)

vii) /

/

viii)

ix) 15

x)

83-L 2 CCE PF+PR

13729 PF + PR-7015

/

( Alphabet )

10 × 1 = 10

1.

(A) (B)

(C) (D)

2.

(A)

(B)

(C)

(D)

3.

(A) (B)

(C) (D)

4. Si + C SiC

(A) (B)

(C) (D)

CCE PF+PR 3 83-L

13729 PF + PR-7015 [ Turn over

5.

(A)

(B)

(C)

(D)

6. 15 V

220 V

(A)

(B)

(C) AC

(D)

7.

(A) 2 30

(B) 4 20

(C) 0∙5 80

(D) 1∙5 30

83-L 4 CCE PF+PR

13729 PF + PR-7015

8.

(A)

(B)

(C)

(D)

9.

(A) 80 KJ 20 KJ

(B) 50 KJ 15 KJ

(C) 30 KJ 6 KJ

(D) 60 KJ 24 KJ

10. A B 9 gm/dL

13 gm/dL.

(A) A B

(B) B A

(C) A B

(D)

CCE PF+PR 5 83-L

13729 PF + PR-7015 [ Turn over

11. A B

4 × 1 = 4

A B

(A) (i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(B)

(C)

(D)

7 × 1 = 7

12.

13.

14.

83-L 6 CCE PF+PR

13729 PF + PR-7015

15.

16.

17. n-p-n

18.

26 × 2 = 52

19. D.C.

(a) (b)

20. (i)

(ii)

21.

(i) (ii)

22.

(a)

(b)

CCE PF+PR 7 83-L

13729 PF + PR-7015 [ Turn over

23. ( Blast furnace )

24.

25.

26. ( Na ) ( Mg ) ( Al ) ( Si )

27. ( HIV )

28. 4

0·72 g/L 0·77 g/L 0·18 g/L 0·90 g/L

29.

30.

83-L 8 CCE PF+PR

13729 PF + PR-7015

31.

32. Cn

H 12 n OH.

33.

(a)

(b) PQ PR

34.

(i)

(ii)

35.

36.

37.

CCE PF+PR 9 83-L

13729 PF + PR-7015 [ Turn over

38.

39.

40.

41.

42.

43.

44. 20

5 × 3 = 15

45.

(a) (b)

46.

(a)

(b)

47. (a)

(b)

48. (a)

(b)

83-L 10 CCE PF+PR

13729 PF + PR-7015

49.

(a)

(b)

3 × 4 = 12

50. (a)

(b)

(c)

(a)

(b)

(c)

51.

(a) (b)

52. (a) 2Mg + O2 2MgO

(b)