8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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145
2 130 2
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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2 4Conc. H SO2 5 3C H OH CH COOH
Sunlight4 2CH C l
2 4
Hot Conc.3 2 H SO
CH CH OH
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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i r e i r e
30 28 30 30 18 30
40 35 40 40 25 40
50 40 50 50 30 50
(I) (II)
i r e i r e
30 20 40 30 20 30
40 30 50 40 30 40
50 40 60 50 40 50
(III) (IV)
r > e i r e < i i r < e i e > r
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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( )7 5 g 1
5 g 100
( )7 5 g 1
7 g 100
( )7 5 g 1005 g ( )7 5 g 100
7 g
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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1452
130 2
4
3
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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2 4H SO2 5 3C H OH CH COOH
4 2CH C l
2 4
3 2 H SOCH CH OH
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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i r e i r e
30 28 30 30 18 30
40 35 40 40 25 40
50 40 50 50 30 50
(I) (II)
i r e i r e
30 20 40 30 20 30
40 30 50 40 30 40
50 40 60 50 40 50
(III) (IV)
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r > e i r e < i i r < e i e > r
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8/12/2019 CBSE Class 10 Science Question Paper SA 2 2012 (10)
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( )7 5 g 1
5 g 100
( )7 5 g 1
7 g 100
( )7 5 g
1005 g
( )7 5 g100
7 g
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