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Chemistry

Chemistry
Percentage of carbon in steel ranges from

4.0 to 6.0
0.1 to 1.5
1.5 to 3.0
3.0 to 4.0

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Chemistry
Vinegar made by fermentation from cane sugar contains

Citric acid
Palmitic acid
Acetic acid
Lactic acid

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Chemistry
The percentage of Nitrogen in Air is

78.03
85.02
0.03
0.94

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Chemistry
Impure camphor is purified by

Fractional crystallisation
Sublimation
Fractional distillation
Steam distillation

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Chemistry
Of the following compounds of calcium, the one having highest covalent character is

CaBr2
Cacl2
CaF2
Cal2

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Chemistry
The molecular formula of phosphorous is

P4
P2
P3
P1

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