34 S II - netway.lk
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යාව අ.පො.ස. (සා/පෙළ) වෘත ශ්වයා ා ස්අ අයාෙප වප ශාාාව අයාඅ අතායංශය තාර හා සතේදඅ ාෂණ ශාඛාව අ.තා.ස. (සාතාඅය ත) ාායය – 2020 ආදශ අ ය දයාව - II කාලය ැය 02 34 S II A තකාටස - වහය රාඅා 1. (A) පႄසර පධයකට අදාලව පපෝႥය මටၨ නဒ ၾ࿚ ය සංයා ၄රၩකය පහත දවා ඇත. ဓ႙පාදකයාට වකා 500% ක වැ႑ම ၉ාၩක යැපපဒනဒ Ⴋන අතර ဒවන පපෝႤය මටම පදවන පපෝႤය මටමට වකා 300% ဒ වැය. I. ඇ පතාර අပව X Ⴔ අගය පකාපමණ ද? .................................................... II. ඇ මටၨ නට අදාල ව සංයා ဓႇපනය මට පහත අම මත ර ၉Ⴊතාරය පගාකනගဒන. III. ඉහත ආකාරපၻ ය සංයා ၄රၩකය පැවැය හැ අවႪාව සාහා අදාල පපෝႥය මටၨවලට ႭႭ ႑ဒ සාහා උදාහරණය පදဒන. (එ එ පපෝႥය මටමට පවන පවන ම ႭႭ ႑ဒ නၨ කරဒන) ဓႣපාදකයා: ..................... ........................................................ ၉ාၩක යැපපဒනා : ............................................................ ႐ၼක යැපපဒනා : ............................................................................. ႐ၼක යැපපဒනනဒ ၉ාၩක යැපපဒනනဒ ဓႣපාදකၼဒ 1200 400 X සංයාව පපෝႥය මටම 400 800 1200
Transcript of 34 S II - netway.lk
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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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(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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ii) ?
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iv) b
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v) .
vi) ?
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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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iv) E, F, G ?
(C) .
i) (a) A
(b)
(c) A
x E .
y F .
z G .
2-- + +
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ii) (a) B
(b) B
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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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y
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iii) (a) . .
(b) ?
D
KOH
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(C) .
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(b)
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(c) x y
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(b) .
(c) .
(d) .
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i) A,B,C .
ii) D .
iii) D O2 .
iv) L.P .
v) CH4 .
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I. (a) D
(b) D
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III. 1A
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a)
b)
c) x, y, z .
. ..( ) –2020
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1. (A)
. 500%
300% .
I. X ? ....................................................
II.
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III.
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(B)
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2. (A) , , .
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b. ......................................
c. ......................................
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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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(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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B
5. (A)
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ii) ?
iii) b ?
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6. (A) .
i) (a)
(b) Ca(OH)2
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(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)
.
iv) E, F, G ?
(C) .
i) (a) A
(b)
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x E .
y F .
z G .
2-- + +
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ii) (a) B
(b) B
7. (A)
.
i) a ?
ii) b x y ?
iii) h 3cm , 1kgm-1- , g=10ms-2- h
iv) h ?
(B) 240 V
.
i)
ii)
.
.
iii) 000W 5
a) ?
b) ?
c) ?
y
x
h
b
a
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C F C F
(C) .
i)
.
ii)
.
iii) .
8. (A)
.
i) (a)
.
(b)
ii) (a) C ?
(b)
?
iii) (a) . .
(b) ?
D
KOH
C
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(C) .
i) (a) , .
(b)
ii) .
(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.
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III. 1A
?
a)
b)
c) x, y, z .