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A -‍
1. (A) ‍
. 500% ‍
300% .
I. X ? ....................................................
II. ‍
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III. ‍
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2. (A) , ‍, ‍ .
I. .
a. ......................................
b. ......................................
c. ......................................
II. .
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b. ..................................................................................................
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3. (A) ‍‍ . .
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(b) ‍ Zn Cu ‍
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(B) ‍‍ ‍ .
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A 5g 1 mol dm-3 30 oC
B 5g 2 mol dm-3 30 oC
C 5g 2 mol dm-3 30 oC
D 5g 2 mol dm-3 60 oC
‍‍ ‍
(a) A C ......................................................................................................................................
(b) B C ......................................................................................................................................
(c) C D ......................................................................................................................................
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(B) 500g
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II. .
01.................................................................................................................................................................................
02.................................................................................................................................................................................
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(s) 0 2 4 6 8 10 12 14
(N) 0 1 2 3 4 6 6 6
(N) 0 1 2 3 2 2 2 2
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(C)
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B
5. (A) ‍
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i) a, b, c .
ii) ‍ ?
iii) b ?
iv) b
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v) ‍ .
vi) ‍ ?
(B) ‍ .( , ,
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i) (a) ‍ ‍ .
(b) ‍ .
(c)
ii) (a) ‍
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iii) ?
iv) ‍ .
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6. (A) ‍ ‍ .
i) (a) ‍ ‍

(b) ‍ Ca(OH)2
?(Ca=40 , O=16 H=1)
(c) Ca(OH)2 ‍ Ca(OH)2 ‍
ii) (a) Ca(OH)2 ‍ ?
(b) ‍ ?
(c) ‍ ‍ ‍ .
(B) x, y,z ‍ E, F, G ‍ . .
i) E, F, G x ‍ ‍
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ii) E, F G z ‍ a , b c . a , b , c
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iii) ‍
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iv) E, F, G ‍ ‍ ?
(C) ‍ .
i) (a) A ‍

(b) ‍
(c) A

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x E ‍ ‍.
y ‍ F ‍ ‍.
z ‍ G ‍ ‍.
2-- + +
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ii) (a) B
(b) B
7. (A) ‍
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i) a ?
ii) b x y ?
iii) h 3cm , 1kgm-1- , g=10ms-2- h

iv) ‍ h ?
(B) 240 V
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ii) ‍
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.
iii) 000W 5

a) ?
b) ?
c) ‍ ?
y
x
h
b
a

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C F C F
(C) ‍ .
i) ‍
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ii)
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iii) .
8. (A) ‍
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i) (a) ‍
.
(b)
ii) (a) C ?
(b) ‍
?
iii) (a) ‍ . .
(b) ?

D
KOH
C

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(C) ‍ .
i) (a) , ‍ ‍ .

(b) ‍
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(a) ‍
(b) ‍
?
(c) x y
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(d) .
i) A, B, C
ii) A ‍ ‍ .

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9. (A) ‍ .
i) (a) ‍ ‍ ?
(b) .
(c) .
(d) .
ii) .
(B) .
i) A,B,C .
ii) D .
iii) D O2 .
iv) L.P .
v) CH4 .
.
(C) .
I. (a) D
(b) D ‍
II. ‍
‍
.
III. ‍ 1A
?
a)
b)
c) x, y, z ‍ .